The three fruitional kāyas.
In essence it is empty, hence free from the limitations of permanence.
By nature it is clear and free from the limitations of nihilism.
Its compassion unobstructed, it is the ground of manifold emanations.
It is divided into three, yet in truth there are no such differentiations.
May all realize this Great Perfection, the true nature of the ground!
The undefiled dharmakaya, as the form of reality itself, is the ground of everything. By its very own nature this emptiness is clear and luminous, and thus the sambhoghakaya is spontaneously present. In all circumstances, whether at the time of the ground, path, or fruition, it undergoes neither change nor fluctuation, and neither waxes nor wanes. It is, therefore, free from the limitations of nihilism.
As the radiance of this unified awareness-emptiness, its capacity is unobstructed. This is the ground of manifold emanations—the illusory empty forms that manifest, the pure as well as the impure.
It is divided into three distinct components, yet in truth, when it comes to the essence of this single awareness there are no such differentiations. May all realize this natural Great Perfection, the true nature of the ground, without losing sight of the wisdom of the sambhogakaya in which the three kayas are spontaneously present!http://www.lotsawahouse.org/
"Despite the fact that we are a ceaselessly transforming stream, interdependent with other beings and the whole world, we imagine that there exists in us an unchanging entity that characterizes us and that we must protect and please. A thorough analysis of this reveals that it is only a fictitious mental construct".
Shechen Rabjam Rinpoche.