Horus as a Falcon bearing orange Sun disk wrapped with a golden cobra serpent.
It was said in ancient Egypt that the Sun was his right eye and the Moon his left eye.
“Down to the earth hath looked the heavenly Falcon:
Soma with wisdom views all living creatures"
Rig Veda book 9 HYMN LXXI. Soma Pavamana.
Osiris (Greek language, also Usiris; the Egyptian language name is variously transliterated Asar, Aser, Ausar, Ausir, Wesir, Usir, Usire,or Ausare) was an Egyptian god, usually called the god of the Afterlife. Osiris is one of the oldest gods for whom records have been found; one of the oldest known attestations of his name is on the Palermo Stone of around 2500 BC. He was widely worshiped until the suppression of the Egyptian religion during the Christian era. The information we have on the myths of Osiris is derived from allusions contained in the Pyramid Texts (ca. 2400 BC), later New Kingdom source documents such as the Shabaka Stone and the Contending of Horus and Seth, and much later, in narrative style from the writings of Greek authors including Plutarch and Diodorus Siculus. The most commonly encountered family relationship describes Horus as the son of Isis and Osiris.
Horus is one of the oldest and most significant of the deities in the Ancient Egyptian religion who was worshiped from at least the late Predynastic period through to Greco-Roman times. Different forms of Horus’s are recorded in history and these are treated as distinct gods by Egyptologists. These various forms may possibly be different perceptions of the same multi-layered deity in which certain attributes or syncretic relationships are emphasized, not necessarily in opposition but complementary to one another, consistent with how the Ancient Egyptians viewed the multiple facets of reality. The earliest recorded form is Horus the Falcon who was the patron deity of Nekhen in Upper Egypt and who is the first known national god, specifically related to the king who in time became to be regarded as a manifestation of Horus in life and Osiris in death.
In the Ennead mythology, Osiris is the husband of Isis, and sibling of Set, all of whom are the great-grandchildren of the creator god Atum or Ra, and Horus is not present within the system. In the Ogdoad mythology, Osiris is not present within the system, and Horus is son of Atum, the creator god. When the Ennead religion and the Ogdoad religion merged as a result of the unification of upper and lower Egypt, Ra and Amun were identified as one-another, becoming Amun-Ra, and Horus was initially considered the fifth sibling of Osiris, Isis, Nephthys, and Set. However, Horus' mother, Hathor, gradually became identified as a form of Isis, leading to Horus becoming Isis's son, and therefore the son of Osiris. It should be obvious that these are two separate yet very similar gods that have been merged into a mythological family social structure.
Both Horus and Osiris were resurrected by Isis with help from Thoth after being killed by Set the evil brother of Osiris. In one legend Osiris’s body is cut into pieces and scattered throughout Egypt, Isis set out to look for the pieces and she was able to find and put together 13 of the 14 parts, but was unable to find the 14th and most important part, his penis, instead, she fashioned a “phallus out of gold” and sang a song around Osiris until he came back to life. Thus Osiris was resurrected and so it was that Isis conceived Horus. Due to this experience, Osiris became Lord of the Dead, and the Afterlife.
Horus had the Sun for one eye and the Moon for the other eye, thus the eyes of Horus were the Sun & Moon, an appt description of the young Amanita muscaria mushroom as the Philosophers' Stone that has lasted in European Alchemy and Hermeticism to the early 20th century.
Osiris and Horus are two ancient and perhaps identical “Gods” that resurrect and are associated with the grain barley. Barley appears to be the best grain to grow the “eternal Fleece” germinated from dried Amanita muscaria, when culturing the “living bread”. The link below is to one of the best researched papers on the subject of Osiris, Horus and Barley.
The following is quoted from
“The entheomycological origin of Egyptian crowns and the esoteric underpinnings of Egyptian religion”
by Stephen R. Berlant.
"The Eye of Horus has generally been regarded as a solar, lunar, and ornithological symbol because Horus was a solar and lunar deity with the head and, often, body of a hawk. But the Eye of Horus was heretofore unexplainably also a plant from which the Egyptians made an elixir and cakes they believed could confer immortality on people, about which E.W. Budge wrote: The gods nourished themselves with celestial food which was supplied to them by the Eye of Horus, that is to say, they supported their existence on the rays of light which fell from the sun which lit up heaven, and they became beings whose bodies were wholly of light. According to one myth the gods themselves lived upon a ‘wood or plant of life,’ which seems to have grown near the great lake in Sekhet-hetep, round which they were wont to sit . . .. In other places we read of ‘bread of eternity’ and ‘beer of eternity.’ (Budge, 1969a,b, vol. I, p. 164)
The Egyptians therefore included this plant of immortality in the ale and cakes they entombed with dead Egyptian kings, in accordance with the legend in which Osiris, whom every king aspired to become, was resurrected after he somehow ate the Eye of Horus (Griffiths, 1980). The entheomycological significance of this plant, and the reason Egyptian priests believed it could confer immortality on those who consumed foods made from it, can now be fully understood by noting that eyes are. An Egyptian utchat, representing the Eye of Horus, Re and Thoth, as well as a plant that could reputedly yield an elixir of immortality. intuitively appropriate symbols of entheogenic mushroom caps, because such caps are ovoid like eyes and typically have a central protrusion or depression suggesting an eye’s iris (Ott, 1969).In addition, eyes, like suns, are very appropriate symbols of entheogenic mushroom caps, because ingesting such caps induces the luminous phenomena that solar and lunar symbols so aptly describe metaphorically. Hence, such caps were reputed to give people the ability to see into other realms of reality. Thus, Odin, while hanging, like a personified rhizophyllic mushroom, from the sacred Yggdrasil tree, gained the gift of omniscience and prescience only after he drank from a well into which he had dropped his eye.
The theory that the Eye of Horus was an entheogenic mushroom cap can also be supported by noting that the Egyptians personified this eye in the very same way ancient Hindu priests personified Soma. More precisely,
(1) The Egyptians personified Horus and Osiris as eyes, just as the Rg Veda describes the Soma plant and its elixir as an eye (Rg Veda I 875ab; IX 94; IX 10 ab).
(2) The Egyptians personified Horus and Osiris as the sun, just as The Rg Veda personifies the spirit of the Soma plant, which also yielded a divine elixir, as a luminous, solar deity (Rg Veda I, 4610ab; IX, 26c; IX, 275ab).
(3) The Egyptians described Horus and Osiris as luminous lunar deities, just as the Rg Veda describes the Soma plant and its elixir as a luminous lunar deity (Rg Veda 8.082.08; 10.052.02: 6.039.03).
(4) The Egyptians claimed that the Eye of Horus could confer immortality on those who consumed it, or an elixir made from it, just as the Rg Veda describes the Soma plant and its elixir as having the ability to confer immortality on those who consumed it (Rg Veda, 8.048.03; 1.091.06; 1.091.18; 8.048.12; 8.048.11).
(5) The Egyptians associated or personified Horus and Osiris as hawks, just as the Rg Veda as well as the Taittiriya Samhita and Aitareya Brahmana, associate Soma with a hawk, claiming more specifically that this hawk brought Soma to India (Rg Veda 1.080. 02; 1.093.06; 8.082.09) (Taittiriya Samhita 6.1) Aitareya Brahmana (3.25–27).
(6) The Egyptians believed the Eye of Horus was submersed in and then taken from the primeval waters, just as the Rg Veda claims that Soma plant emerged from the primeval waters, and was an earthly, consumable part of those waters (Rg Veda, IV58.1) (Lidova, 1995).
From the above and many other Hindu textual passages too numerous to mention, it can be inferred that the Eye of Horus was almost certainly the Egyptian analogue of Soma."
Wikipedia Eye of Horus