This is the game of duality.
There are basically 2 opposing forms of energy that mutually define/illuminate each other.
But there are also cycles and spirals.
A cycle is the oscillatory movement of energy in the field of energy dualities.
A self accumulating/momentum accumulating cycle creates a snowball effect OR a spiral which spirals outwards.
Similarly, A spiral can also happen inwards.
Inward spiral is of contraction, and outward spiral is of expansion. Again to witness these inward/outward spirals, there has to be a relatively stable background to provide the frame of reference. This background is similar to the stationary object perspective when it comes to speed, acceleration and deceleration.
If I compare this with the relativity of distance, speed, acceleration:
Distance - Duality
Speed - Cycles
Acceleration - Spirals