The Magician: tarot meaning, upright and reversed

A raised wand and a downward-pointing hand join heaven and earth above the four suit implements.
Upright
skill · intention
Bring the resources already available into deliberate action. An idea needs a practiced hand.
Reversed
misdirection · unused ability
Skill may be scattered, withheld, or used to create an appearance without substance.
In a reading
The position gives this card a particular task: a description of the situation, a challenge, or guidance. Read its image and meaning alongside the other cards and the question that brought them together.
Golden Dawn correspondence
Planet: Mercury. This is the attribution in Book T.
Sources
A. E. Waite, The Pictorial Key to the Tarot. These notes are original interpretations of the Waite–Smith imagery, informed by that text.