There are some who think that the presence of people or of some people, or the presence of a particular person, tires them; some think that their energy, their life, is eaten up by some people; some think that a particular action takes away their energy; some think that their strength is taken out of them by their everyday duty in life or the work they happen to do, such as singing, speaking, doing bodily or mental work; and of course, as they think so they experience.