It seems like it will never arrive. But once it does, spring seems like the the only possible way to be.
We use the word spring for that time of year when hope, as we say, proves that it springs eternal, when the vernal shows the trace of Persephone returning from the underworld.
The word spring comes up again and again.
The springs in your car help determine its ride, how compliant or stiff, how bouncy or smooth. Spring, then, is also about movement.