From "The Great Perfection Prayer of Kuntuzangpo"

The original ground of everything is uncompounded.
It is the self-originating infinite expanse, beyond expression,
Where not even the name of samsara or nirvana exists.
When realizing just this, you are a Buddha.
When not realizing this, you are a sentient being wandering in samsara.
May all sentient beings of the three realms realize
The true meaning of this inexpressible original ground!