When a friend calls and we see the number flashing on our phones we have a different gesture on our faces - depending on who is the friend, what is our mood and how good our relations are with the friend (caller). Imagine you are thinking about the latest assignment you have from your work and a million calculations and computations are going through your mind, and, suddenly a good friend calls, even before you pick it up, you forget the assignment and for few moments all the stress is gone ! It may be for a few moments but it refreshes you - the power of relationship works here in the positive way.
The emphasis of the above imagined situation is on the ability of a good relationship doing something that even costliest drugs and therapies are unable to do. A good relationship is a huge positive for not only an individual but for the society as a whole.