What does it mean that Moses writes on the tablets? In fact, the Upper Light, i.e., the Creator does it, but a person’s hand executes it.
A person who is in complete agreement and complete adhesion with the Creator must perform such an action when he writes the Torah on his heart or gives this opportunity to the Creator. This can be interpreted in different ways.
However, even we assume that a person does it himself, the Creator leads his hand.
From KabTV’s “Secrets of the Eternal Book” 5/16/16