cruising

Cruising is the state in which an individual or group can cover the most distance with the least energy while moving.

It can also be used to describe the feeling of flow that goes along with being up and running on a project and totally unblocked.

It comes from the idea of an airplane being at "cruising altitude" -- the airplane doesn't have to re-spend the energy requisite to take off anymore once it has reached cruising altitude

It is also similar to the experience of sailing, when the wind has fully filled the sail and the vector of the boat's motion is consistent and direct.

how are you doing?

I am cruising!