Isis or in original more likely Aset (Ancient Greek: Ἶσις) was a goddess in Ancient Egyptian religious beliefs, whose worship spread throughout the Greco-Roman world. She was worshiped as the ideal mother and wife as well as the matron of nature and magic. She was the friend of slaves, sinners, artisans, and the downtrodden, and she listened to the prayers of the wealthy, maidens, aristocrats, and rulers.Isis is the goddess of motherhood, magic and fertility.
The goddess Isis (the mother of Horus) was the first daughter of Geb, god of the Earth, and Nut, the goddess of the Overarching Sky, and was born on the fourth intercalary day. At some time Isis and Hathor had the same headdress. In later myths about Isis, she had a brother,Osiris, who became her husband, and she then was said to have conceived Horus. Isis was instrumental in the resurrection of Osiris when he was murdered by Set. Her magical skills restored his body to life after she gathered the body parts that had been strewn about the earth by Set. This myth became very important in later Egyptian religious beliefs.
Isis is also known as protector of the dead and goddess of children from whom all beginnings arose. In later times, the Ancient Egyptiansbelieved that the Nile River flooded every year because of her tears of sorrow for her dead husband, Osiris. This occurrence of his death and rebirth was relived each year through rituals. The worship of Isis eventually spread throughout the Greco-Roman world, continuing until the suppression of paganism in the Christian era
Most Egyptian deities first appeared as very local cults and throughout their history retained those local centres of worship, with most major cities and towns widely known as the home of these deities. Isis originally was an independent and popular deity established inpredynastic times, prior to 3100 BC, at Sebennytos in the northern delta.
Eventually temples to Isis began to spread outside of Egypt. In many locations, devotees of Isis considered a number of the local goddesses to be Isis, but under different names. The worship of Isis was joined to that of other Mediterranean goddesses, such as Demeter, Astarte, Aphrodite, and more. During the Hellenic era, due to her attributes as a protector and mother, as well as a lusty aspect gained when she absorbed some aspects of Hathor, she became the patron goddess of sailors, who spread her worship with the trading ships circulating the Mediterranean Sea.
Likewise, the Arabian goddess Al-Ozza or Al-Uzza العُزّى (al ȝozza), whose name is close to that of Isis, is believed to be a manifestation of her. This, however, is thought to be based on the similarity in the name.
Temples to Isis were built in Iraq, Greece and Rome, with a well preserved example discovered in Pompeii. On the Greek island of Delos a Doric Temple of Isis was built on a high over-looking hill at the beginning of the Roman period to venerate the familiar trinity of Isis, the Alexandrian Serapis and Harpocrates. The creation of this temple is significant as Delos is particularly known as the birthplace of the Greek gods Artemis and Apollo who had temples of their own on the island long before the temple to Isis was built. At Philae her worship persisted until the 6th century, long after the rise of Christianity and the subsequent suppression of paganism. The cult of Isis and Osiris continued up until the 6th century AD on the island of Philae in Upper Nile. The Theodosian decree (in about 380 AD) to destroy all pagan temples was not enforced there until the time of Justinian. This toleration was due to an old treaty made between the Blemyes-Nobadae and Diocletian. Every year they visited Elaphantine and at certain intervals took the image of Isis up river to the land of the Blemyes fororacular purposes before returning it. Justinian sent Narses to destroy the sanctuaries, with the priests being arrested and the divine images taken to Constantinople. Philae was the last of the ancient Egyptian temples to be closed.]
Little information on Egyptian rituals for Isis survives, however, it is clear there were both priests and priestesses officiating at her cult rituals throughout its entire history. By the Greco-Roman era, many of them were healers, and were said to have many other special powers, including dream interpretation and the ability to control the weather, which they did by braiding or not combing their hair. The latter was believed because the Egyptians considered knots to have magical powers.