Nīḷā-devī is the third consort of Lord Mahāviṣnu, the other being Śrīdevī and Bhūdevi. She is depicted to have a beautiful blue colour (Nīla-varṇa), hence the name Nīlā-devī. The Veda-s sings the glory of Goddess Nila in Nīḷā-sūktam. Often she is the hidden one, as the other two consorts of Viṣṇu are more visible.
Nīḷā-devī is the embodiment of simplicity of Lord Vishnu and is also a symbol for patience and carrying the burden. She supports the earth and the sky and rules over the worlds with strength and firmness and is infinitely compassionate.
This mantra is the Gāyatrī-mantra for Nīlā-devī. Listen to it about 12 times, twice a day, to live life with simplicity so that we can focus our energy to fulfil our true potential.
oṁ mahādevyai ca vidmahe viṣṇupatni ca dhīmahi | tanno nīḷā pracodayāt