The Wave

Turn the yin-yang on its side and you see a wave. Two sides that never mix but never separate. A lava lamp of intertwined forces.
A wave forms where two environments meet. Water and air. Warm and cold. There can be no gaps — the wave exists precisely because both sides press against each other with no space in between.
This is also how relationships work. A couple is not just two people occupying the same flat. It’s a unity. The boundary between yin and yang is where two people meet. In a real pair, there should be no gap. Each one carries a piece of the other inside. Daughters resemble fathers, sons resemble mothers.
Both should add to the wave. Fill the space between so there’s no emptiness. Like an egg — you can’t crush it from outside when there’s no gap. The stronger both push in, the stronger the wave they ride together.