““Now, sustaining attention is trickier than directing attention. Why? It’s possible to voluntarily direct attention. However, the part of the mind that sustains attention for more than a few moments works entirely unconsciously. We can’t use our will to control how long we remain focused on one thing. Instead, an unconscious process weighs the importance of what we’re focusing on against other possible objects of attention. If an object is important or interesting enough, attention remains stable. If something else is judged more important or interesting, then the balance tips, and attention moves elsewhere.6 Even though this weighing process isn’t under our conscious control, we can still influence it through consciously held intentions. Just””
