Dr. Jacinta Mpalyenkana said this quote

There is no exclusivity in the comparison of emotions attached to opposites This means that we can not appreciate feeling good when we have never felt bad. We can never appreciate comfort without being exposed to discomfort. let's make a determined effort every day to do uncomfortable things; because it's only when we push ourselves beyond our comfort limits that we get to uncover the abundant wealth of endurance within us, and get to tap into the true essence of comfort.