Dharmakaya......

Dharmakâya (Sk). Lit., “the glorified spiritual body” called the “Vesture of Bliss”. The third, or highest of the Trikâya (Three Bodies), the attribute developed by every “Buddha”, i.e., every initiate who has crossed or reached the end of what is called the “fourth Path” (in esotericism the sixth “portal” prior to his entry on the seventh). The highest of the Trikâya, it is the fourth of the Buddhakchêtra, or Buddhic planes of consciousness, represented figuratively in Buddhist asceticism as a robe or vesture of luminous Spirituality.
In popular Northern Buddhism these vestures or robes are:
(1) Nirmanakâya (2) Sambhogakâya (3) and Dharmakâya the last being the highest and most sublimated of all, as it places the ascetic on the threshold of Nirvâna. (See, however, the Voice of the Silence, page 96, Glossary, for the true esoteric meaning.)