Each immanent phenomenon taking part of the universal absolute (excluding the universal absolute itself, which is free from karma) can be described as a wave or a wave packet. It is the underlying principle of the karma. Because of the complexity of a system, such waves are rarely simple sine wave but rather complex wave packets interacting each others as phenomena influence each others.
Tides of karma
Main article: Tides of the karma
For each cycle of a wave, the compression is the first half of the cycle. The inspiration when breathing is a good example.
For each cycle of a wave, the rarefaction is the last half of the cycle. The expiration when breathing is a good example. The rarefaction is symmetric to the compression.
Phase is the synchronization offset of two waves.
When two similar waves are in phase, the bumps and holes of the wave are synchronized so the sum of the two wave has a greater amplitude than each wave.
When two similar waves are out of phase, the bumps of one wave is synchronized with the holes of the other, resulting in a wave with a lower amplitude than each waves.