Tao Te Ching part 2.
Part one explains that the Tao is beyond the definition of human thought, but explains that it can still be experienced.

Part two shows how as soon as we define anything we automatically create its opposite and complimentary parts. How can we ‘have’ unless we have ‘not having’? ‘Difficult’ without ‘easy’, ‘light’ without ‘dark’, ‘hot’ without ‘cold’ and ‘voice’ without ‘sound’?

This can only be understood in stillness and silence by doing ‘no thing’ and taught by direct wordless transmission. All traditional martial arts have this aspect to their teaching.

The wise person is able to experience the universe rising and falling from the Tao like waves arise from and return to the sea and harmonises with it by not trying to possess or take credit, but contributing and enjoying the immersion.