Going back and forth is referred to as "cycling"

You will find you get glimpses of the next stage; back again; then forward.

You will find that you finally settle into one or the other.

Steady and I worked on the Squirrel.

Another favorite of ours is "The River" of life and "Fruitless Paddling'

One of my favorites.

If I can find it, I'll try to repost our exchange.