The most popular and earliest cults in the ancient Near East related to fertility. Fertility goddesses, such as Astarte, influenced the growth of crops and the prosperity of the people. Figures like this one were made of clay and mass produced. Some were made by hand, others were created in molds. Perhaps these statues were used in magic rituals or given as offerings to the fertility goddess.
Most of the cultures living in the ancient Near East worshipped many gods and goddesses. Aspects of life were explained by the actions of these gods - war, weather, disease, and more were understood as the result of the gods' desires. People thought their gods looked and behaved like they did, but with supernatural powers. Gods usually had beards and wore a horned crown or helmet. They often had their own symbols, too - the crescent and circle represented Sin, the moon god.
How do we know about Near Eastern myths? Most of our information comes from clay tablets found in ancient palace and temple libraries. Scribes recorded myths in cuneiform writing. Also, we can see a lot of mythological stories, gods, and goddesses illustrated on cylinder seals.
For example, this impression of a seal shows the bird-man Zu brought for judgment before the Watergod.
The Near East was also the birthplace of three of the world's modern religions - Judaism, Christianity, and Islam. These religions are all monotheistic - they worship one god.