Dear Rawn, Six months ago I would have given the exact same elemental correspondences to the senses, and those associations would have been purely logical. Now, however, while I maintain the same correspondences, my reasoning for using such correspondences has strayed quite a far ways from pure, rational logic and has entered into the realm of intution and personal experience. When working with the solitary mental body, which consists of only the fire and air regions of the mental body, generally speaking, the only perceptions that are encountered are optical, auditory, or dependent upon the direct perception of essential meaning. When working with the astra-mental body, which consists of the fire, air and water regions of the mental body, the perception of feeling is encountered. In fact, it is that sense of tactile realism that is generally considered to be the defining point that differentiates between mental and astra-mental projection. Moreover, it is this amount of the water element that seems to solidify the mental body down into an astral density as an expression of the water elements magnetic nature. With regards to the guided visualization of the 8T, I personally feel that it is the inclusion of the two torches in the tunnel that solidifies the visualization as one sees the flames, hears the crackle of the embers, feels the heat, and smells the combustion of the carbon. Without something to this effect, the visualization is just up in the air as it where, not having the same sort of life to it. Also, a lovely method for producing a clear mind is to focus upon the imput that each of the five senses are receiving in turn in a specific order: sight, hearing, feeling, smell and taste. In essence, working through the natural order via which things manifest themselves; fire, air, water, and finally earth. Which is, of course, the same order that Bardon posits for the sequence of sensory concentration exercies. On the other hand of things, the elemental correspondences that you posit do make some sense. Allbeit primarily upon an intellectual level and not really upon an intuitive level. The sequence of sensory concentration exercises would follow the Kabbalahistic sequence of creation: fire, water, air and then earth. Love and Live well, Peter Reist