If you ignore its profundity, you can never practice stillness. Like the great void, it is Perfect and lacks nothing, nor has any excess. If you discriminate, you will miss its suchness. Cling not to external causes, nor stay in the void. Differentiation ceases if you can be impartial.
Stillness comes when all disturbances are stopped, cling to stillness is also a mistake.
If you do not recognize One Mind, two opposites will lead you nowhere. The more you talk and think, the further you are from it. When you halt all speech and thought, you will find it everywhere. If you believe success comes with returning all things to their source, you will still be clinging to its function. The instant that you look within, you surpass your contemplation of the void, which is always changing because of your discrimination of views.