Gurdjieff describes the "soul" as, like all things, being made of a
(very fine) material, and something that we build. Don Juan, via
Castanada tells us that we have a spiritual body that is built from
the ground up (and that most people - 99.999%+ - never develop past
the top of their toes). Similarly, Sivananda speaks of gathering
material for higher bodies (and BTW, warns that one moment of anger
can dissapate hundreds of hours of meditation, which is one way to
acquire this divine substance that is the structure of higher bodies).
So, adding 1 and 1 and 1 and getting infinity, can we not conclude and
say (if there in fact is a "we" that can do anything), that until we
have become 'substantial' enough to act, we can't even discuss "ego"
as anything other than a theory and part of a dream. And yes, quoting
dead guys has the potential to confuse us as well as point the way.
But, 'injesting' the wisdom of fully developed beings is what all
these guys would call proper food for building the spirit. And
personally, I give thanks and praise for the very satisfying and chock
full of nourishing higher food thoughts that are often shared here.
Peace and blessings,