2114.
The reason is that the foreskin portrays that which stands in the way of the act of love, consequently of the happy states that arise from love in itself. For in [mankind's] state of integrity nude people were innocent, and thus there was innocence. But in its perverse state, one cannot even utter the word "nudes," without at once creating stumbling blocks, because their loves are filthy.
It can never be denied that the harmonies of the inward heaven come from the very inward regions, and thus from the Lord