Isis (Ancient Greek: Ἶσις, original Egyptian pronunciation more likely Aset) is a goddess in Ancient Egyptian religious beliefs, whose worship spread throughout the Greco-Roman world. She was worshipped as the ideal mother and wife as well as the patron 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 often depicted as the mother of Horus, the hawk-headed god of war and protection (although in some traditions Horus's mother was Hathor), and she is depicted suckling him in an attitude similar to that of the Virgin Mary with the Child Jesus. Isis is also known as protector of the dead and goddess of children.

The name Isis means "Throne". Her headdress is a throne. As the personification of the throne, she was an important representation of the pharaoh's power. The pharaoh was depicted as her child, who sat on the throne she provided. Her cult was popular throughout Egypt, but the most important sanctuaries were at Behbeit El-Hagar in the Nile delta, and, beginning in the reign with Nectanebo I (380–362 BCE), on the island of Philae in Upper Egypt.

Earth (or the Earth) is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets. It is sometimes referred to as the world, the Blue Planet, or by its Latin name, Terra.

Earth formed approximately 4.54 billion years ago by accretion from the solar nebula, and life appeared on its surface within one billion years. The planet is home to millions of species, including humans. Earth's biosphere has significantly altered the atmosphere and other abiotic conditions on the planet, enabling the proliferation of aerobic organisms as well as the formation of the ozone layer which, together with Earth's magnetic field, blocks harmful solar radiation, permitting life on land. The physical properties of the Earth, as well as its geological history and orbit, have allowed life to persist. The planet is expected to continue supporting life for another 500 million to 2.3 billion years.