To think less is to remain happy.
Expression: Usually there is a tendency to think more than normal when there is a challenging situation. Although it is considered to be good to think more, we usually miss out on the fact that thinking more means having lots of waste thoughts along with those that are necessary.
Experience: When we find ourselves thinking a lot we need to ask ourselves if all these thoughts are really necessary. We need to recognize waste thoughts and replace them with something more positive. With this practice we'll find ourselves thinking less and at the same time having powerful thoughts which will keep us cheerful under all circumstances.