|The gist of Hinduism, per Hindu creation myth, as a reincarnation-variant of the resurrection-based Egyptian mythology, namely: the god Vish-Nu and man Ma-Nu, based on the Nun (Nile flood) or Nu, the creator god Brahman, based on Ra (sun), and the goddess Saraswati based on Isis (Sirius). |
Lotus | Creation
The lotus, the symbol of Upper Egypt, where Theban theology (see: Thebian creation myth) and Hermopolis theology (see: Hermopolis creation myth) reside, predominately, where the plant grew, as compared to the papyrus, the symbol of Lower Egypt, where Heliopolis theology (see: Heliopolis creation myth), Memphis theology (see: Memphis creation myth), and Busiris theology (see: Osiris cult), reside, predominately, where this plant grew, is a common feature of Hinduism. 
The lotus closes at night and sinks underwater. In the morning, it re-emerges and blooms again. Thus, the flower, like the baboon and the dung beetle, became a natural symbol of the sun and creation.
In Hermopolis, it was believed that there was a giant lotus blossom that first emerged from the primordial waters of Nun and from which the sun-god came forth; a rendition of this image is the head coming out of the lotus flower, below left. (Ѻ) Below center, is the sun springing from an opening lotus flower, emerging out of the Nun or watery abyss, in the form of the child Horus.  Below right, we see Horus the pharaoh sitting on Lotus while wearing the double crown of Upper and Lower Egypt: 
This so-called “great world lotus”, as Wallis Budge (1904) refers to it, is one of things, among the various Egyptian mythologies, out of which the sun rose for the first time. 
The specific “Horus” shown above, is the Heru-Sma-Taui, Horus #9, according to Budge classification, aka “Horus the Uniter of the South and North”, defined as the son of Hathor, who was believed to spring into existence out of a lotus flower which blossomed in the heavenly abyss of Nu at dawn at the beginning of the year. This version of Horus was worshipped at Aat-hehu, a district near Herakleopolis Magna (nome #19, Upper Egypt), Ant (Denderah) (nome #6, Upper Egypt) (Ѻ), and the city of Khatat. 
The head of a man coming out of the lotus, above left, comes from a vignette of the Theban recension of the Book of the Dead, which Budge describes as follows:
“In From Chapters lxxxi., versions A and B, we learn that the deceased had power to transform himself into a lotus; in the first version of the text he says, "I am the pure lotus which springeth up from "the divine splendour that belongeth to the nostrils of Ra," and in the second we read, "Hail, thou Lotus, thou type of the god "Nefer-Tem! I am he who knoweth you, and I know your "names among the gods, the lords of the Underworld, and I am "one of you." The vignette of the first version is a lotus, and that of the second is a lotus plant with a flower and buds growing out of a pool of water, and out of the flower springs a human head, i.e., the head of the deceased.”
The four sons of Horus, to note, are often shown on a rising lotus. (Ѻ)
Here, as we see, much of Hinduism has its conceptual model rooted in Upper Egyptian theology, which can be compared to Judaism-based theologies (Christianity and Islam) which have much of their story-telling surrounding papyrus plant models (Lower Egyptian theology).
Birth of Brahma | Solar birth
|Left: the creation myth birth of Ra, the Egyptian sun god, out of a lotus flower, the stem of which descends into the Nu (or Nun) the water god or water abyss (Nile River) of Egyptian mythology (3100BC), as carved on the walls of Dendera Temple (38AD). Right: the Hindu mythology (800AD) re-write of the latter, according to which, as described in the Bhagavata Purana [SB 3.8.10-14], Brahma (Ra) is born out of a lotus, the stem of which comes out of the navel of the god Vishnu (Nun), wherein Apep, the mythical snake that Ra does battle with each night, becomes the multi-headed Hindu snake Shesha, and Naunet, the female counterpart of Nun, according to Hermopolis cosmology, becomes Lakshmi, the wife of Vishnu.|
SB 3.8.10 (Ѻ): At that time when the three worlds were submerged in water, Garbhodakaśāyī Viṣṇu [Nun] was alone, lying on His bedstead, the great snake Ananta [Apep], and although He appeared to be in slumber in His own internal potency, free from the action of the external energy, His eyes were not completely closed.
SB 3.8.11 (Ѻ): Just like the strength of fire within fuel wood, the Lord remained within the water of dissolution, submerging all the living entities in their subtle bodies. He lay in the self-invigorated energy called kāla.
SB 3.8.12 (Ѻ): The Lord lay down for a thousand cycles of four yugas in His internal potency, and by His external energy He appeared to be sleeping within the water. When the living entities were coming out for further development of their fruitive activities, actuated by the energy called kāla-śakti, He saw His transcendental body as bluish.
SB 3.8.13 (Ѻ): The subtle subject matter of creation, on which the Lord’s attention was fixed, was agitated by the material mode of passion, and thus the subtle form of creation pierced through His abdomen.
A Mar 2019 Egyptian to Hindu god rescript (Ѻ) by blogger Arvind Bhagwath.
SB 3.8.14 (Ѻ): Piercing through, this sum total form of the fruitive activity of the living entities took the shape of the bud of a lotus flower generated from the Personality of Viṣṇu, and by His supreme will it illuminated everything, like the sun, and dried up the vast waters of devastation.
SB 3.8.15 (Ѻ): Into that universal lotus flower Lord Viṣṇu personally entered as the Supersoul, and when it was thus impregnated with all the modes of material nature, the personality of Vedic wisdom, whom we call the self-born, was generated.
SB 3.8.16 (Ѻ): Brahmā [Ra], born out of the lotus flower, could not see the world, although he was situated in the whorl. He therefore circumambulated all of space, and while moving his eyes in all directions he achieved four heads in terms of the four directions.
SB 3.8.17 (Ѻ): Lord Brahmā, situated in that lotus, could not perfectly understand the creation, the lotus or himself. At the end of the millennium the air of devastation began to move the water and the lotus in great circular waves.
SB 3.8.18 (Ѻ): Lord Brahmā, in his ignorance, contemplated: Who am I that am situated on the top of this lotus? Wherefrom has it sprouted? There must be something downwards, and that from which this lotus has grown must be within the water.
SB 3.8.19 (Ѻ) : Lord Brahmā, thus contemplating, entered the water through the channel of the stem of the lotus. But in spite of entering the stem and going nearer to the navel of Viṣṇu, he could not trace out the root.
Dharma | Maat
In Hinduism, the Egyptian concept of Maat, according to Muata Ashby (1997), is the forerunner to the Hindu concept of Dharma, meaning "order, righteousness, and justice". 
Egyptian | Origins
In 1300BC, the Book of Gates was being promoted (see: recension theory) as an afterlife text by the priests of Thebes, such as found on the sarcophagus of Seti I (1279BC), and on the walls of the tombs of the several kings of the 20th dynasty (1189-1077BC), in which, in the section or chapter called the “Tenth Hour of the Night”, one begins to see two-headed, four-armed god morph in the character of the dual god Set-Horus, as shown below:
In 900BC, this double-headed four-armed god conception, would become characteristic of the Hindu god models, such as found in the three-headed god Brahma, pictured above, which itself is a god morph syncretism of the gods: Nun + Ra (great-great grandfather of Horus, per Heliopolis creation myth) + Atum (or keme).
|Indian Hindu monk Swami Vivekananda's 1896 diagram conception of his idea of reconciliation of Hinduism with science; which he supposedly consulted with Nikola Tesla about.  The inherent problem, however, here, being that Vivekananda is ignorant of the fact that "Brahma" is but reincarnation-rewrite of the earlier Egyptian mythology conception of Ra born out of the Nun following the flood (Ab), i.e. B-Ra-hma-ic theology; which is akin to the way most Christians and Muslims are ignorant of the fact that Abraham and Sarah have the Egyptian mythological same roots.|
In 1896, Indian Hindu monk Swami Vivekananda (Narendranath Datta) visited in New York with William Thomson, Hermann Helmholtz and Nikola Tesla; among whom, according to Howard W. Odum (1929), Helmholtz, at some point, expressed interest or “recommendation for research into spiritual things”. 
“Tesla thinks he can demonstrate that mathematically that force and matter are reducible to potential energy. I am to go see him next week to get this mathematical demonstration.”— Swami Vivekananda (1896), “Letter to Friend”, Feb 13 
Vivekananda believed, supposedly, that the harmony between Vedantic theories and and western science was explained by the following diagram, shown adjacent.
● Hindu atheism
● Hindu mythology
The following are related quotes:
“The Brahmins give a wonderful account of their Chorcam or paradise, in which grew a tree that would have given man immortality had he been permitted to eat of it. They also believe that a god-made man was to be born of a virgin, by divine operation; hence the incarnation of their Juggernaut and the birth of Krishna in a grotto where he was adored by shepherds and angels.”— Romualdo Gentilucci (1848), Life of the Most Blessed Virgin Mary 
“The Hindu sacred writings contain all the myths and fables found in the Cristian Bible.”— John Fiske (c.1865) 
1. Odum, Howard W. and Jocher, Katharine C. (1929). An Introduction to Social Research (pg. 31). H. Holt and Co.
2. (a) Nikhilananda, Swami, Vivekananda. (1973). The Yogas and Other Works (Ѻ). New York.
(b) Swami Vivekananda – Wikipedia.
3. (a) Budge, Wallis. (1904). The Gods of the Egyptians, Volume One (pgs. 197-200). Dover, 1969.
(b) Budge, Wallis. (1908). An Account of the Sarcophagus of Seti I, King of Egypt, B.C. 1370 (pg. 111). The Museum.
4. Thims, Libb. (2016). Smart Atheism: For Kids (pdf | 309-pgs) (pg. 135). Publisher.
5. Gentilucci, Romualdo. (1848). Life of the Most Blessed Virgin Mary (pgs. 25-26). E. Dunigan, 1860.
6. Ashby, Muata. (1997). Anunian Theology: African Religion, Volume One (Lotus plant, pg. 49; Dharma, pg. 65). Cruzian Mystic Books.
7. Budge, Wallis. (1904). The Gods of the Egyptians, Volume One (lotus, 8+ pgs; world lotus flower, pg. 23; Horus #9, pgs. 472-73; head out of lotus, pg. 521-22). Dover, 1969.
8. (a) Maspero, Gaston. (1903). History of Egypt, Syria, Babylonia, and Assyria, Volume One (pg. 193). Grolier Society.
(b) Horus – TruthBeKnown.com.
9. Haught, James A. (1996). 2000 Years of Disbelief: Famous People with the Courage to Doubt (pgs. 191-92). Prometheus.
● Moor, Edward. (1864). The Hindu Pantheon (Osiris, 6+ pgs.). Higginbotham.
● Hinduism – Wikipedia.