Mind causes Mind to seek, just as Mind causes thoughts and imagination, forms and words.
in emptiness (initial enlightenment), there are no words, nor are there thoughts to speak of. all opposites such as good and bad are seen as empty, and therefore by some as meaningless, if all is seen to be one emptiness, then this is so... emptiness negates dualities and arisings of all kinds are seen to be not.
however... when Mind is penetrated then all of these things are seen as they are... just so. if we choose to describe what some have said is indescribable, then that is our dharma... however any kind of explanation of reality is just what it is. there are arguments about 'relative'. 'objective'. neither relative nor objective, both, none of these. each view (a dualtity) can be seen as a postion. is there really any need to take positions? if your mind tells you there is, then this is so.
if your mind tells you there isnt. then this is so. the mind likes to dance. it does not like to be forced into a rigid postion where it looses its freedom.
if i talk about winds and mists then winds and mists are seen by your minds eye. but one mans mist is superficially different from another mans mist.
you will find your own way to the truth. the buddha would like to lend a hand, but ultimately who is the buddha? you are the buddha. if you think you do not know then you dont, if you think you do then you do. both of these are merely positions that can be accepted or swept away like dust.
words may be used, or they may be rejected. if one is natural, one will be in accord with whatever comes... which Master Tenkei said is 'it'. to some will come words, to others will come silence. fundamentally i can say whatever i like about words and silence, since i have freedom. or i can say just as much by saying nothing at all.
the dharma that embraces emptiness is saying nothing at all. there is not a grain of dust anywhere in the dharma, not a hair. it is pure and pristine. not a single word ever spoken by the buddha. Mind giving its commentary on emptiness says that emptiness is whatever you want it to be. whether with words or without words.
it has been said that 'in enlightenment not a single thing is established'. this is the approach of the empty mind. radiant Mind that has been filled says whatever it wants. it is not limited to 'neither', 'nor' formulae, nor to 'no' this, 'no' that. it says what it wants to say.
ch'an does favour emptiness and therefore it stresses the emptiness of all dualties.
(opposites), hot, cold etc.
I hope i have clarified my position. every word on this post is nothing but the expression of Mind, as it is, as it isnt. as it wants to be seen or not seen.
with love, from White Lotus.