[Kristoffer O]

The Celestial Masters are based upon the taoistic T'ien Shih (celestial masters), leaders of the taoistic cult during certain times. An important concept in taoism is wu wei (inaction/not doing).

Water being yielding and changing is the closest representation of wu wei I could come up with.

Also water, according to Lao Tzu, is 'of all things most yielding and can overwhelm [rock] which is of all things most hard' (43)