Cosmological painting

The origins and symbolism of this painting have baffled a number of scholars. It appears to diagram the heavenly and earthly realms inhabited by gods, celestial beings, demons, animals, and humans. At the upper center, a scene of the Hindu god Vishnu asleep on a serpent in the cosmic sea signals the creation of the universe. Black lines connect twin human bodies to the celestial and earthly spaces surrounding them. Beneath these figures, wild beasts and angry demons appear toward the lower edges of the painting, perhaps representing the underworld. What sacred symbols catch your eye? Lotuses? Serpents?