go into a state of mental confusion or unawareness, a daze or a stupor.go into a state of mental confusion or unawareness, a daze or a stupor. And that phenomenon which some of us knew back in 1950 whereby the auditor would gradually fog out (we were running an engram that he should have had run - that's why he told us to run it) and gradually he's going thud! thud! -How We Have Addressed the Problem of the Mind (4 July 1957)