The ToL can be overlaid on the structures outlined in Metabolism I and II to create a 'vertical' ToL one that most practitioners of the WMT are familiar with in that it overlaps with the body, and a 'horizontal' ToL which overlaps with the way in which consciousness processes moments. These two ToLs are interelated as we must remember that the body is a map of the mind, and the mind is a map of the body. I will outline the way in which these ToLs operate and interact.
As the DNA fuses in the initial phases of the generation of any new organism and the cells begin to divide, the emerging creature begins to generate a 'head' end and a 'tail' end, a front and a back. Therefore there is a 'head' end and a 'tail' end within the DNA itself. The cells of your head are expressing the head section of your DNA, the cells in your liver are expressing the liver section of your DNA, etc, each cell containing all the DNA of the individual but only expressing certain parts of it. Your physical idea of yourself then, when we look past the personality you have acquired as a result of your social interactions, etc is, for want of a better name, Feelix. We are all, at the level of Yesod, Feelix.