Дхармакая.

reality, it does not possess in any way whatsoever the identification, characteristics, or the designation of “Dharmakaya.” This is just as Milarepa said. If expressed from another angle, Dharmakaya has eight characteristics:
 1. sameness,
 2. profundity,
 3. permanence,
 4. oneness,
 5. perfection,
 6. purity,
 7. radiance, and
 8. relationship to enjoyment.
 1. Sameness. There is no difference between the Dharmakaya of all the Buddhas.
 2. Profundity. Because it is free from all elaboration, it is difficult to realize.
 3. Permanence. It is not compound; it has no beginning, middle, or end; and it is free from birth and
 cessation.
 4. Oneness. It is indivisible because the Dharmadhatu and primordial wisdom cannot be differentiated.
 5. Perfection. It is unmistaken because it is beyond exaggeration and underestimation.
 6. Purity. It is free from the three obscurations.2
 7. Radiance. There are no discursive thoughts; only non-conceptual thoughts are projected in the non-conceptual state.
 8. Relationship to Enjoyment. Embodying the nature of vast good qualities, it is the foundation of the complete enjoyment (Sambhogakaya).
 The Unsurpassed Tantra says: Beginningless, centreless and endless Completely indivisible, Free from the two, Free from the three,
 Stainless and concept-free— Such is the Dharmadhatu.
 Understanding of its nature is the vision
 Of the yogin who abides in meditation.
 The Ornament of Mahayana Sutra says:
 The Nature-body is sameness, subtle, and related to enjoyment.

Dharmakaya.
Dharmakaya is merely labelled as the exhaustion of all errors through realization of the meaning of the
all-pervading emptiness of all phenomena, or as the mere reverse of the nature of confused projection.