In Freudian terms, to submerge yourself in something. To work, study or exercise in an excessive manner.
"He threw himself into his work."

If a basic human drive is sex, (Eros), but sexual behavior needs to be reigned in, sublimation is the productive, socially acceptable use of that reigned in energy.

Sublimation is the triumph of the Superego over the Id. The "whistle while we work" of the Freudian mind/body experience.

Also might explain why there are so many damn nodes here after dark. Could be.