Everyday, I drive a car to go to work. I know that a car has an engine which gives it power to move forward but the exact details of how that works I do not know. That fuel ignites and releases energy, I know. But if you ask me how to repair or upkeep the car I cannot answer you that.

There are many things like this. I do not exactly know how it works but that it works is all I need to know.

Metaphysics in philosophy is like this. I do not know what is the nature of matter, but that matter is an important component of reality. And like a car, you do not need to know its underlying nature. In fact, there is no stopping of the regression. Even if you know the nature of reality you will continue to ask what is the nature of the nature of reality.

So why not stop the infinite regress at the very start and get on with what is important—living.