...Like dust that covers the mirror: you have to clean the dust. Because our mind has all the potential to see emptiness, to be free from all the suffering causes, to be free from death, even to achieve ultimate liberation which is called full enlightenment which is the cessation of even the very subtle negative imprints left on the mental continuum. 
By ceasing that our mind [bad word] fully awakened.
This realization of emptiness is something that makes you to be
liberated from the whole entire suffering including the cycle of death
and rebirth.
What creates the death? This ignorance, not knowing the ultimate nature
of the I and the ultimate nature of the mind.
What is I?
And what is mind?
Realizing that it is totally nonexistent, empty, that it is false and a
hallucination...
You have to clean the dust.
It is empty.
It is empty but it is not totally nonexistent.
When you realize THIS...