Vishnu appears on earth in various avatars, but only Rama and the Buuddha play a significant role. He contains and balances good and evil and preserves the divine order of the universe. He wears a seven-headed cobra and holds a lotus flower, conch shell, spinning disc and a mace. He also has a caste mark on his forehead.
"Radha is the goddess of lovers and desperate romantics. The beloved mistress of the youthful god Krishna, Radha's passionate, erotic, dram is one of the world's great myths of love and separation. The Radha energy is present wherever there is passionate love and the wish to merge with the beloved." From "Awakening Shakti" by Sally Kempton