The mind is a continuum known as the nature of awakened awareness (Buddha Nature).

Each living being has mind, its subtlest nature being the basis of purity and all-knowing clarity.

This means that we all have the potential for enlightenment. 

In reference to the mind, we have to say it is empty,

therefore mind is beginningless, endless, forever-existing awareness.

Genla Venerable Thubten Tenzin