A vibration is a periodic change of state. This change of state, from one pole to the other, constitutes the frequency of the vibration. One pole becomes the other pole in Time sequence by varying each pole's constituent or aliquot parts.
"The Father - mother principle is fundamental in every expression and both are simultaneously manifested in every expression, each being preponderant sequentially during half of each cycle." Russell, The Secret of Light, page 125
7.5 - Successive Moments
14.30 - Effect of Preponderance
14.31 - Preponderance Russell
Law of Compensation and Equilibrium
law of etheric compensation and restoration