The Nymphs were minor nature goddesses which populated the cosmos. Although they were ranked below the gods, they were still invited to attend the assemblies of the gods on Olympos.
The Nymphs presided over various natural phenomena: from springs, to clouds, trees, caverns, meadows, and beaches. They were responsible chiefly for the care of the plants and animals of their domain, and as such were closely associated with the prime gods of nature such as Hermes, Dionysos, Artemis, Poseidon and Demeter.
image: Nymphs painting Hylas and the Nymphs by John William Waterhouse