Quote from American Heritage Dictionary:

"Precipitation of a process or event, especially without being involved in or changed by the consequences."

Description:

The MOON is called CATALYSIS in Atlantean times. Like the future moon with its tides, CATALYSIS is the archetype of change, both attracting and repelling, without involving itself in the consequences. This catalytic power causes the Atlantean molecular pyramid to split apart to the depths of death and destruction. Down through the corridor the planets fall, to return in a future age to the cosmic orbits which they now follow.

The Serplion, at the bottom, is already struggling to be reborn, with the symbol of the Fifth Sun in its mouth, a new light after darkness, a prophecy of the coming age. Tee laughing jackal-creatures, as evil as they are in the Trump of Barra Deval, here are lunatic figures of the blackest nightmare.

Interpreted use:

One must relax one's tightening molecular structure to realign the centers. Earth your dreams!

Reversed (card received upside down):

This card can represent a dangerous and abysmal process; one can go too deep too quickly and be drawn into ancient debris.