Allowing you to perfect yourself in your art, it wisely guards other people against the perhaps injurious influence of your productions, and in any case it completes logically, finishes, enforces, and makes clear the meaning of your solitary confinement.

What does solitary confinement in our prison mean?
It means that the prisoner should be alone.

But would he be alone if by his productions he would communicate in some way or other with other people outside ?" By the expression of K.'s face I noticed with a sense of profound joy that my words had produced on him the proper impression, bringing him back from the realm of poetic inventions to the land of stern but beautiful reality.

And, raising my voice, I continued: "As for the rule you have broken, which forbids any inscription or drawing on the walls of our prison, it is not less logical.

Years will pass; in your place there may be another prisoner like you--and he may see that which you have drawn.