Time is the universe seeking balance.

Explanation:

Electricity is a difference in voltage trying to equalize. Diffusion is the same phenomenon in water. Weather, flight, and the wind all stem from the same phenomenon in pressurized air. Even heat flows from hot to cold. Per the laws of thermodynamics, this sets a fixed direction for time. But it is not only a phenomenon of heat; even on a philosophical scale, this is how the universe runs.