Want this question answered?
Demeter's worship is known as the Eleusinian Mysteries.
Demeter is a goddess of fertility, grain, and agriculture. She is pictured as a mature motherly figure. Although she is the goddess who taught mankind about agriculture, she is also the goddess responsible for creating winter and a mystery religious cult. Demeter is usually accompanied by her daughter Persephone.
Demeter is a goddess; she does have her own cult and host of gods and goddesses as aides.
Despoina was a fertility goddess who was worshiped alongside her mother Demeter in an mystery-cult. Her father was Poseidon. Despoina is the title "Mistress", this goddesses name is otherwise lost.
The Eleusinian Mysteries (the cult of Demeter and Persephone) were the most famous of the secret religious rites of ancient Greece.
Allaire Chandor Brumfield has written: 'The Attic festivals of Demeter and their relation to the agricultural year' -- subject(s): Agriculture, Cult, Demeter, Demeter (Greek deity), Festivals, Religion, Religious Mysteries
Demeter (Ceres) was the great Olympian goddess of harvest, agriculture, grain, and bread, the prime sustenance of mankind. She also presided over the foremost of the Mystery Cults which promised its initiates the path to a blessed afterlife. Demeter was depicted as a mature woman, often crowned and holding sheaf of wheat and and a torch. Demeter was the daughter of Cronus and Rhea, and sister of Hestia, Hera, Hades, Poseidon, and Zeus. Her children are as follows; +Zeus Persephone, goddess of the grain and Queen of the Underworld, wife of Hades. +Iasion Plutus, god of agicultural wealth. Phoilomelus, inventor of the wheel. +Poseidon Despoina, a goddess of the Mystery Cult. Arion, a immortal horse. Demeter is sometimes also said to be mother of two of Karmanor's children, which confuses the matter further as Karmanor was identified with Iasion. Eubouleus, who was the demi-god or hero of the sacred swine of the Eleusinian mysteries. He was probably also a demi-god of ploughing and the planting of the grain seed. Khrysothemis, was probably the same as Akakallis, she was the agricultural demi goddess of the "Golden Custom," probably a harvest-festival.
The Cult of Isis was a mystery religion created by the Greek Ptolemy Soter, based on aspects of the ancient Egyptian religion. It was a mystery cult (a secretive religion requiring initiation in various phases) that spread throughout the Mediterranean throughout the late Classical period. It is still going today.
Mithras
Demeter cult titles includes Sito (she of the Grain, the giver of grain) and Thesmophoros (bearer, giver of divine order, law-bringer). As a goddess did not have duties. She was the goddess of grain, the harvest, who presided and the fertility of the earth.
Cybele or the Great Mother and the Egyptian Isis
Huitzilopochtli