It is the silence, the rest, the repose. That marker of breath around which the notes are played and the music forms.
It is what creates rhythm.
When peddling, it is that moment on top when the foot is not being pulled along or actively pushing.
The absence of cadence is noise. The destruction of pattern. The inability to make sense. Or move ahead.
When life makes no sense, I find ways to introduce more markers.
This creates the cadence, that helps me know if I should be pushing or pulling next.