the sublimation of libido—the life energy of all striving, creativity, spirit, etc.

“The unceasing complexity of life's accumulations
has created a great principle for energy expression—

it is termed sublimation—and in popular parlance

represents the spiritual striving of mankind

towards the perfecting of a relation with the world
of reality—

the environment—which shall mean
human happiness in its truest sense."

From
Hidden Symbolism of Alchemy and the Occult Arts
Herbert Silberer