Sometimes we get so occupied in "the flow" of life's demands, that we forget about the tremendous power of just "stopping" every now and then. It's much better to take a break than to be forced by circumstances (deteriorating health, destroyed relationships etc) to take a break. Sometimes it's just taking some time to be quiet, to reflect, and yes, to think.
Sometimes changing the habits can assist us in not getting involved in the rush, the hurry and the general urgency of "life's" demands.
In order to focus on what is important and not be caught up in what is urgent, we need to stop.
So, when stopping seems impossible - it's time to stop.