Key passage of note-
"Although it transcends form, the bliss of the authentic non-dual condition contains all forms within itself, it cannot become an object and cannot be conceived as “one”. Pure and total conciousness cannot be depicted in any way. However, for phenomena created by consciousness, multiplicity arises.
I am the essence of the state of perfection of all Buddhas.
To those attracted by oneness, I teach the that the ineffable essence is one alone. Whereas to those attracted by multiplicity I teach the infinite variety that manifests from me: it too is my nature. One is my essence. Two is my manifestation. The multiplicity of created phenomena. There is nothing in this nature that is not perfect.”
The Kunjed Gyalpo is an essential non-dualist text and Namkhai Norbu's translation is a clear/concise read.