Flow: The Classic Work On How To Achieve Happiness: The Psychology of Happiness

by Mihály Csíkszentmihályi

Attention is like energy in that without it no work can be done, and in doing work it is dissipated. We create ourselves by how we invest this energy. Memories, thoughts, and feelings are all shaped by how we use it. And it is an energy under our control, to do with as we please;