Philae is an island in Lake Nasser, Egypt. It was formerly an island in the First Cataract of the Nile River and the previous site of an Ancient Egyptian temple complex in southern Egypt. The complex was dismantled and relocated to nearby Agilkia Island during a UNESCO project started because of the construction of the Aswan Dam, after the site was partly flooded by the earlier Aswan Low Dam for half a century [Wikipedia.org]

[From www.discoveringegypt.com, below] Philae in Greek or Pilak in ancient Egyptian, meaning 'the end,' defined the southern most limit of Egypt. It was begun by Ptolemy II and completed by the Roman Emperors.

The Temple was dedicated to the goddess Isis, the wife of Osiris and mother of Horus. These three characters dominate ancient Egyptian culture and their story possesses all the drama of a Shakespearian tragedy. The god Osiris is murdered and dismembered by his brother Seth. Isis searches for the fragments, collects them together and with her magic powers brings Osiris back to life. They then conceive the god Horus. Osiris becomes god of the under world and judge of the dead - who must answer to him for their deeds on Earth. Meanwhile Isis gives birth to Horus and protects the young god. Later when Horus is grown he avenges his father by defeating Seth in combat.

Isis is a very important figure in the ancient world. She is associated with funeral rites but as the enchantress who resurrected Osiris and gave birth to Horus she is also the giver of life, a healer and protector of kings. She was known as 'Mother of God' and was represented with a throne on her head. During the Roman period her cult spread throughout Greece and the Roman Empire. There was even a temple dedicated to her in London.