Every line which is deeply engraved on the surface of the mind may be likened to a vein through which the blood runs, keeping it alive, and while the blood is running it is productive of offshoots of that deep-set line. There are moments when a kind of congestion comes in a line where the blood is not running, and there are no offshoots. This congestion can be broken by some outer influence; and when the congested line is touched by an outer influence related to that line then this sets the blood running again and offshoots arising, expressing themselves in thoughts. It is just like a waking or sleeping state of the lines.

As one note of music can be fully audible at a time so one line of offshoots can be intelligible at a time, and it is the warmth of interest that keeps the blood running in that particular line. There may be other lines where the blood is alive also; still if they are not kept warm by one's interest they become congested and thus paralyzed; and yet the blood is there, the life is there, it awaits the moment to awaken. The sorrows of the past, the fears of the past, the joys of the past, can be brought to life after ages, and could give exactly the same sensation that one had experienced formerly.

The more one knows the mystery of this phenomenon the more one learns to understand that there is a world in one's self, that in one's mind there is a source of happiness and unhappiness, the source of health and illness, the source of light and darkness, and that it can be awakened, either mechanically or at will, if only one knew how to do it. Then one does not blame his ill-fortune nor complain of his fellow-man; he becomes more tolerant, more joyful, and more loving toward his neighbor, because he knows the cause of every thought and action, and he sees it all as the effect of a certain cause.

A physician would not revenge himself on a patient in an asylum, even if the patient hit him, for he knows the cause. Psychology is the higher alchemy, and one must not study it only without practicing it. Practice and study must go together, which opens the door to happiness for every soul.