They allow us to concentrate more on which to concentrate, is what we must have, because if we do not concentrate. When we come across a problem we will not concentrate on thinking how to find ways to solve the problem.
It will enable us to concentrate more. This is what we must concentrate. If we do not concentrate When we have problems, we will not concentrate on thinking how to find solutions to problems.
– we concentrate more. The focus is what we must have, if we can't concentrate. When we find problems, we will concentrate in the thinking of how to find solutions to problems.