Ton is second of the Three Powers, well, technically its opposite is the Second Power, which is “flow”, or spiritual power, “Chi”, “Reiki”, “magick”, “string theory”. Ton is the opposite of this because there isn’t way of symbolising flow, so the heiroglyph was a pillar to indicate “not flow”, and a link to the Pillar Gods, which is are supernatural beings that hold up the layers of all the worlds in the multiverse.
Imagine the universe as being layers of different worlds or dimensions, and the Pillar Gods hold up the surfaces that keep those worlds separate. They are strength and dedication and immortal. They are the ultimate in “not-flow” or an absolute barrier. Ton is different to the other letters in that the default vowel is “o”, as in the “not” of something, rather than its embodiment which is the normal meaning of the “a” vowel. So when read as the symbol without any diacritics, it is pronounced as “to” (as in the o in sock, not toe or too).