One intriguing quality of emptiness is the impossibility of negativity. What is called negative only arises through comparison of two, or more, of what is positive. Positivity is the precondition for existence. This seems incredibly straightforward when seen simply. A cup exists, and it is positive, because it exists. Thought is the culprit that establishes negativity as a seeming fact, because it can invent the concept of negativity and then call something negative in turn. That is the arrogance of thought.
When everything is nothing, there is nothing to look for. The apparent solidity of reality, such as a “world” or a “person”, isn’t actually solid. They are like water or air. The moment they arrive they begin to leave. There is nothing behind them, nothing supporting them, nothing motivating them, nothing controlling them. There is only the apparent nothingness of thingness. The mind continues to issue challenges to be solved or objectives to search for, but the mind’s projections are also nothing projecting. They are not real, yet it isn’t that they are illusory. They are simply empty, without substance, momentary, conjuring and dissolving. This is actually freedom.
What is emptiness? Everything is emptiness. The “substance” of anything isn’t actually there, but put together by thinking. When we look at a tree, there isn’t actually a “tree”, but thought says there is a tree, and associated with it the many scientific or emotional significance: like this tree was planted by me and I am attached to it, or this tree is classified according to the shape of its leaves, and so on. These are merely responses to the tree which are not the tree. Then comes the question: what is the tree? We can also ask: without thinking about the tree, is there a tree? There is no tree.