Is this to be attained by contemplation, by concentration, by meditation? No, actually it is in our everyday life, in our simple everyday actions that we develop the power of mind by this simple law: when we are doing some work and the desire comes, "No, I must go and rest and sleep", and we go and rest, we give in to our desire. We go and rest, but the work is not accomplished. Then a person may say, "I must not be abrupt, inconsiderate; I must have consideration from now on." Next day something happens in which he should be considerate and gentle, but he thinks, "In this case it does not matter; it is a small thing; it is a very small thing", and gives in. The excuse comes to the rescue; but as soon as he gives in to a slight weakness, next time he falls down again because the weakness wins every time. So every person seeking to attain mastery will find some weakness waiting for him; if it is not one weakness, then it will be another.