Everything emits a certain type of frequency, (or vibrancy). A super big example, is the chakras. You can meditate with the chakras using specific sounds, and when one of those sounds is struck on a piano, or guitar, etc...the frequency of that sound vibrates to the exact frequency of a chakra, thus clearing and opening it.
When you use power words, such as those of Divinity, they hit one of the thousands of chakras located all over your body, allowing you to harness that certain point of energy to produce higher results when casting. You know you've hit a major power word or sound that matches a chakra in your body when you either feel a tingling sensation, your muscles beging to spasm (not a heavy spasm, mind you), that part of your body "feels anxious" and "alert", etc..
Doing it underwater is perfect for testing which ones vibrate to your body or not, simply because water is a medium, and when submerged in it, you begin to experience sensory deprivation, allowing your mind to wake up and be very mindful of your body.
I hope I explained that well enough, I'm still trying to shake the sleep from mind. (IMG:
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We need one that says "I Need Coffee"....please?