It is futile to think about things: things are neither real nor illusory. You must have faith! Learn to ramble with effortless ease in the vacancy of the fields of indifference. Learn to live directly, alongside things - for Truth resides in things.
Are things caused or do they have independence? Both avenues are fruitless. Better to accept the Being of things and be done with it. Trying to understand more is really to understand less. It is like pouring more fuel upon a raging fire to try and put it out.