Buddha-nature or Buddha Principle refers to several related terms, most notably Tathagatagarbha and Buddhadhatu. Tathagatagarbha means "the womb" or "embryo" (garbha) of the "thus-gone" (tathagata), or "containing a tathagata", while Buddhadhatu literally means "Buddha-realm" or "Buddha-substrate".

Buddha-nature or Buddha Principle refers to several related terms, most notably Tathagatagarbha and Buddhadhatu. Tathagatagarbha means "the womb" or "embryo" (garbha) of the "thus-gone" (tathagata), or "containing a tathagata", while Buddhadhatu literally means "Buddha-realm" or "Buddha-substrate".