Question: where do you place the symbols that represent the state of matter in an equation

title: Symbol
text: `` a symbol , like everything else , shows a double aspect . We must distinguish , therefore between the ' sense ' and the ' meaning ' of the symbol . It seems to me perfectly clear that all the great and little symbolical systems of the past functioned simultaneously on three levels : the corporeal of waking consciousness , the spiritual of dream , and the ineffable of the absolutely unknowable . The term ' meaning ' can refer only to the first two but these , today , are in the charge of science -- which is the province as we have said , not of symbols but of signs . The ineffable , the absolutely unknowable , can be only sensed . It is the province of art which is not ' expression ' merely , or even primarily , but a quest for , and formulation of , experience evoking , energy - waking images : yielding what Sir Herbert Read has aptly termed a ' sensuous apprehension of being ' .