stillness vs witness

I’ve read a few books (meditation by OSHO, Integral Spirituality by Ken Wilber and others) that mention the importance of witnessing while meditation. This is quite effective because many times the more I try to suppress my thoughts the more thoughts arise. Sometimes, its like squirting gasoline on a flame.

Stillness seems present already when I simply witness the thoughts and emotions that arise. I let them come without aversion of clinging to them. I notice the tendency to want to add or subtract from the thoughts, but its important to just let the thought be what they are and fade away on their own.