1. Political, Spiritual, Cultural & even Businesses as movements are ENTITIES
Human beings give "Birth" to them then need to NURTURE them so they may grow
WHAT do you feed them?
2. Politicians go after Donors & their $, lobbyists & so on to build political machines to do ONE THING=Get VOTES. Their Machines thrive on & perpetuates itself off reelection.
Without the Votes to feed it, the machine loses it influence, sputters & dies
3. Spiritual Movements require Faith, the more devout & diligent it's Believers the stronger that Movement & Faith grows. Faith provides the Believer comfort & solace in the face of Life's travails & hardships & there fore perpetuates itself
Losing Faith diminishes in turn.