Discworld command help
contemplate - Allows you to concentrate on a spell.
This command lets you enter a deep trance, during which you feed magical energy, namely your guild points, to a spell. At some point, generally requiring a few repetitions, the spell will be satiated and you will be granted a level in a relevant magic subskill for that spell. Sometimes. Eventually. Perhaps.
> contemplate Memories of a Vicious Chicken
You focus your mind on Memories of a Vicious Chicken.
With Memories of a Vicious Chicken at the forefront of your mind, you enter a deep trance.
You emerge from your trance.
You feel Memories of a Vicious Chicken sitting in your mind, eager to be fed again.