What is "ratnasambhava"

Ratnasambhava is one of the Five Dhyani Buddhas (or "Five Meditation Buddhas") of Vajrayana or Tantric Buddhism. Ratnasambhava's mandalas and mantras focus on developing equanimity and equality and, in Vajrayana buddhist thought is associated with the attempt to destroy greed and pride. His consort is Mamaki and his mount is a horse or a pair of lions. His wrathful manifestation is Gundari. Often included in his retinue is the worldy dharmapāla Jambhala.