Free choice

Hello Rabbi

Suppose we accept the principle that everything has a cause (I assume you agree with this, if not – please correct me), then the entire physical state of affairs in the universe at the moment is determined by a pre-determined cause.
If we go to a psychic (mental) state of affairs, there is no reason why the principle of causality would not also apply to such a state of affairs – the mind has a defined state at the moment, and if "everything has a cause" then the mental state of affairs also has a prior cause, and so on and so forth.

How can this be answered?

Thank you very much, Rabbi.