Radha
Radha is Krishna's primary consort and the embodiment of divine love (prema bhakti). She is not mentioned in the Mahabharata or early Puranas — she emerges fully in the Gita Govinda of Jayadeva (12th century) and the Bhagavata Purana. In the Vaishnava tradition, Radha represents the individual soul (jiva) whose aching separation (viraha) from Krishna is the most refined spiritual state possible — the soul that loves God so purely it cannot bear separation. Her name is said to be greater than Krishna's: 'Ra-Dha' contains the breath of God.
Think of something or someone you love so much that being separated from it causes a physical ache. Radha's viraha (separation) from Krishna is the Vaishnava name for the soul's longing for the divine.
Best at dusk — the hour of the evening lamps of Vrindavan.