The fixed impressions of preconceived ideas in any direction are strangely in the way of real freedom. It is difficult to catch new harmonies with old ones ringing in our ears; still more difficult when we persist in listening at the same time to discords.
The experience of arguing with another whose preconceived idea is so firmly fixed that the argument is nothing but a series of circles, might be funny if it were not sad; and it often is funny, in spite of the sadness.
Suppose we should insist upon retaining an unpleasant brain-impression, only when and so long as it seemed necessary in order to bring a remedy. That accomplished, suppose we dropped it on the instant. Suppose, further, that we should continue this process, and never allow ourselves to repeat a disagreeable brain-impression aloud or mentally. Imagine the result. Nature abhors a vacuum; something must come in place of the unpleasantness; therefore way is made for feelings more comfortable to one's self and to others.
Bad feelings cause contraction, good ones expansion. Relax the muscular contraction; take a long, free breath of fresh air, and expansion follows as a matter of course. Drop the brain-contraction, take a good inhalation of whatever pleasant feeling is nearest, and the expansion is a necessary consequence.
As we expand mentally, disagreeable brain-impressions, that in former contracted states were eclipsed by greater ones, will be keenly felt, and dropped at once, for the mere relief thus obtained.
The healthier the brain, the more sensitive it is to false impressions, and the more easily are they dropped.
One word by way of warning. We never can rid ourselves of an uncomfortable brain-impression by saying, "I will try to think something pleasant of that disagreeable man." The temptation, too, is very common to say to ourselves clearly, "I will try to think something pleasant," and then leave "of that disagreeable man" a subtle feeling in the background. The feeling in the background, however unconscious we may be of it, is a strong brain-impression,—all the stronger because we fail to recognize it,—and the result of our "something pleasant" is an insidious complacency at our own magnanimous disposition. Thus we get the disagreeable brain-impression of another, backed up by our agreeable brain-impression of ourselves, both mistaken. Unless we keep a sharp look-out, we may here get into a snarl from which extrication is slow work. Neither is it possible to counteract an unpleasant brain-impression by something pleasant but false. We must call a spade a spade, but not consider it a component part of the man who handles it, nor yet associate the man with the spade, or the spade with the man. When we drop it, so long as we drop it for what it is worth, which is nothing in the case of the spade in question, we have dropped it entirely. If we try to improve our brain-impression by insisting that a spade is something better and pleasanter, we are transforming a disagreeable impression to a mongrel state which again brings anything but a happy result.
Simply to refuse all unpleasant brain-impressions, with no effort or desire to recast them into something that they are not, seems to be the only clear process to freedom. Not only so, but whatever there might have been pleasant in what seemed entirely unpleasant can more truly return as we drop the unpleasantness completely. It is a good thing that most of us can approach the freedom of such a change in imagination before we reach it in reality. So we can learn more rapidly not to hamper ourselves or others by retaining disagreeable brain-impressions of the present, or by recalling others of the past.