The concept of rhythm applies to many situations: musical, artistic, athletic, occupational, social, personal. Each has its own dynamic. Each person is aware of moments of intense concentration when he feels energetic and alert, and is able to accomplish many wonderful things.

As well, each is aware of times of feeling completely exhausted and settling into a deep sleep. This experience of sleep is not so unlike the more energetic experience. Both have an intensity about them which is rhythmic. The same is true of sexual orgasm. Whatever its manifestation, there is a powerful yet effortless quality about rhythm which one recognizes the moment it appears.

Rhythm is the difference between the wave in the ocean which really takes hold and comes crashing into shore and all the other dissipating, feebler waves.

in Rhythm and Self-Consciousness:New Ideals for an Electronic Civilization by William William McGaughey