All things are reborn, not just sentient beings but also non-sentient. Take a tree. We (cause) cut it down (condition) and make a chair (effect). Later someone burns the chair and now we see ash. Cause = someone, condition = burn wood, effect = ash. The tree is a tree, the chair is a chair, and ash is ash. Also, you could say that the tree is not a tree, the chair is not a chair and ash is not ash. One did not become the other but they are still the same.