Beneath the five senses there is one principal sense that works through the others. It is through this sense that one feels deeply, and distinguishes between the impressions which come from outside. Every impression and experience gained by this sense is recorded on the mind. This record is made up of deep lines, and the nature of these lines deeply set in the mind is to want the same thing that has already been recorded, according to the depth of the line. And it is according to the depth of these lines that one needs the thing that one has once experienced. For instance the liking for salt, sour, or pepper are acquired tastes, and the sign of this acquisition is the deep line on the mind. Each line so produced wishes to live upon its impression, and the lack of that experience is like death to that line. Unpleasant flavors, such as that of fish, or vinegar, or cheese, become pleasant after the line is formed; tastes even more unpalatable than these may become excessively agreeable once the line is well-engraved on the mind.

The same rule is applicable to notes of music. A certain combination of notes, or a certain arrangement, when once impressed on the mind, may become very agreeable to it. The more one hears the music which has once been impressed on our mind the more one wants to hear it. And one never becomes tired of it, unless another, deeper line is formed; then the first line may be neglected and become a dead line.

It is for that reason that the music that belongs to a certain people, whether evolved or unevolved, is their ideal music. Therefore it is not the music written without, it is the music written within the mind that has influence. This is the reason why composers resemble each other in their music, for the lines that are impressed upon their minds have been created by what they have heard, and as the first lines are inherited from other composers there is a resemblance in their music. In this way the music of every people forms its own character.

The same law works in poetry. One enjoys poetry from one's previous impressions. If the poetry that one reads is not in harmony with the first impressions one will not enjoy it so much. The more one reads a certain poetry the more one enjoys it, because of the deep impression on the mind.

From this we learn that not only what is desirable but also what is undesirable may become a favorite thing. Even things that one would never like to have, such as pain, illness, worry or death, if they are deeply impressed on one's mind, one unconsciously longs to experience again.

It is very interesting to find that if a man has formed an opinion about a certain thing or person and after a time there has been everything to disprove that opinion, he will still hold on to his impression and will not like to change his opinion, because of these lines deeply impressed on his mind. How true is what the mystic says, that the true ego of man is his mind! And it is still more amusing to find that after spending his life under the influence of the deep impressions on his mind man still boasts of what he calls his free will.