Anyway, more associations:
radio tower
Prometheus (or fire in hollow log/reed)
Thinker
man as thinking reed
Tree of Knowledge (+/- apple and/or serpent)
The Prometheus symbolism is right on (the gaining of new knowledge leading
to irreversible changes, and, for Prometheus himself, very bad news), as
is the Tree of Knowledge, in some incarnations. I've had trouble trying
to turn it into a threefold sigil tho.
Still thinking, and wishing Zander could just email over a sketch of the
Lovecraftian symbol...hey, how about a titanic ELBOW?
Eva