The best way of keeping the mind free from all undesirable impressions is not to partake them at the moment when they fall upon the mind. For instance, if someone is disagreeable, instantly his influence produces the same thing in another person with whom he is disagreeable. The best way to avoid it would be to stand on one's guard that one may not catch his infectious disagreeableness. All such things as pride, prejudice, jealousy, intolerance, coldness, have a great influence upon a person.

When speaking, working or walking with someone, one can easily partake one's companion's disagreeable impulse, because as a rule a person thinks there is justification for giving it back, a word for a word, a frown for a frown. A person feels satisfied in boasting, "He said two words to me, but I have given him back the same in four words." He feels very glad for the moment, thinking, "I have given back what I had received." But he does not know that if he had not given it back, the same that the other person had thrown upon him would have returned to that person a thousandfold.

The psychological point of view therefore differs from the ordinary point of view, for in the psychological point of view there is a science, it teaches one not to take in one's mind what is disagreeable, inharmonious. By understanding this one can maintain the purity of mind, and it requires fortifying oneself with will-power, making the heart as a stone wall, for all that is thrown at it not to pierce through, but to fall down.

The psychological effect of every impression is such that each impression has a tendency to be held by the mind; all we see during the day has, consciously or unconsciously, an influence upon our life. All good or bad things, or things with beauty or ugliness, they remain with us and flourish in our minds. If it was an impression of beauty, that would flourish; if it was an impression of ugliness, that would flourish. This is the principal reason why dreams have effect upon our life. It is the impression that the dream has made upon us that works out its destiny in the waking state. Therefore, if by being on one's guard, instead of resisting evil one would only slide it over, it would run away by its own force.

However good a person, if he easily partakes impressions, he cannot be trustworthy. The one who has no will-power cannot even trust himself. There is no will-power in fighting with another, one shows will-power in fighting with self. The one who is strong enough to keep away from his mind all undesirable impressions will in time radiate harmony and will create the atmosphere of peace; thus making himself happy, he will bring happiness to others.