“Magick is the science and art of causing change to occur in conformity with will.”A.C.
The Magician is one who taps universal power, without fear, to enact their will; one who takes raw possibility and ACTS to transform the possibility into realized dream.
The Magician also possesses the innate understanding of why there’s a need to act, why asserting one’s will is necessary in any given circumstance.
It’s knowing, without doubt, what needs to be done; and then acting, without fear, to make it so.
On the other hand, when it’s reversed or next to a detrimental card The Magician becomes both ignorant and impotent. There is an inability to understand why change is needed, as well as the inability to act, even if it were understood. It’s a state of being stifled by capability and/or circumstance.