Originally, one’s own mind and nature are pure, and there is nothing to accept and nothing to refuse; there is neither existence nor non-existence; there is only clear understanding without attachment and with no dwelling.
One who wants to know the no-attachment, no-dwelling mind can find it through meditation, because it is only then that the mind does not think of right and wrong, of good and evil or of self and others.
If this seems obscure, then consider the following: The past is already gone; when you do not think of it, the thought of the past is gone, too.
Then, there is no past nor any thought of the past. Furthermore, the future has yet not arrived. If you do not wish for nor seek after it, the thought regarding the future vanishes.
Then, there is no future nor any thought about the future. Finally, the present is already present.
Without grasping at it or dwelling upon it and without there being any thought about it, the thought of the present disappears, and there is no present nor any thought of the present. The mind that does not dwell on anything whatsoever is known as the True Mind or Original Nature.
The non-dwelling mind is the mind of the Buddha, it is the mind of liberation, it is the mind of Bodhi, and it is the mind of non-birth. So, if you really want meditation to come about, sit properly erect and close your eyes.
Then purify your mind, lay down everything and think of neither good nor evil. Just observe your thoughts.
As you look for their place of origin, you discover that they suddenly rise up and just as suddenly disappear, and that this process goes on and on.
Be patient and continue to observe them, and you will, in time, know the thoughts to be devoid of any self-nature; also you will, thereby, know original emptiness.
Do not attempt to follow the thoughts, to trace them in any way or have any intention of getting rid of them, and, in time, awareness will manifest as your mind illumines a thought.
Then, there will suddenly be a stillness that becomes suchness. At some point, another thought will arise, and you will observe it in the same way.
