The true nature is sky, The confusion of ordinary minds is clouds, But our Aatman remains as is. Remember clouds do not belong to the sky, they only hang on and pass by as dreamt by the supreme soul. These clouds can never stain or mark the sky in any way, just like Aathman remains unaffected by Karmas and the material world.
To quote Dudjom Rinpoche about Aathman
No words can describe it
No Example can point it out
Samsara does not make it worse
Nirvana does not make it better
It was never born
It has never ceased
It has never been liberated
It has never been deluded
It has never existed
It has never been non existent
It has no limits at all
It does not fall in to any kinda category
Nyoshul Khemp Rinpoche
Profound and Tranquil free from complexity
Uncompounded luminous clarity
Beyond the mind of conceptual ideas
This is the depth of the mind of Victorious ones - (souls attained salvation)
In this there is not a thing to be removed
Nor anything that needs to be added
Its merely immaculate
Looking naturally at itself.
I am not the one who stare at two bit thoughts of Western or Chinese philosophers when we already have a ocean to choose from and delude ourselves with. At least these Zen practitioners apparently seems to have a better clarity of thought a better cutting edge vocabulary to present themselves, compared to modern Indian self declared pundits that calls themselves as yogis, spewing sempiternal and futile lectures without actually making sense.