USW: Tip the World Over on Its Side
Rituals are leftovers of old modernist magick — eye of newt, tongue of bat, and all that — that occasionally still work. They usually have required steps necessary to enact them, and may require magickal charges (like those produced by adepts) to activate.
Of course, rituals tend to be a little unreliable. How willing are you to enact a series of steps recorded by some mystic of dubious sanity anyway? Will it do what you were told it would do?