http://en.wikipedia.org/wiki/Eternal_Buddha
http://www.webspawner.com/users/bodhisattva/index.html
Dharma
Pali: Dhamma. The teachings of Buddha, Eternal Law. Righteous way of living as enjoined by scriptures.
Dharma kaya
The body of the law of Buddha, or the Eternal Law. Kaya means body.
In a number of major Mahayana sutras (e.g. the Mahaparinirvana Sutra, the Tathagatagarbha Sutra, the Srimala Sutra, amongst others), the Buddha is presented as clarifying the teaching of non-permanenceand saying that, while the skandhas (constituents of the ordinary body and mind) are not the Self, there does truly exist an eternal, unchanging, blissful Buddha-essence in all sentient beings, which is the uncreated and deathless Buddha-nature ("Buddha-dhatu") or "True Self" of the Buddha himself.