Siddham symbol; The Buddha image is associated with wisdom. This symbol is the ‘vamh’ seed, which means “pure wisdomâ€. Everything in the universe forms the body of the primal Buddha and he exists in the heart of all beings. Dainichi is the Great Sun illuminating all corners of space. All the other Buddhas spring from his immense energy. Dainichi has two spheres of action: The Diamond Realm, indestructibe, spiritual, unified, centered on prajna, and the Womb Realm (Garbadhatu), material, dynamic, fertile, all inclusive.