Initialism of altered state of consciousness.
"The researcher asked participants to record their sessions in ASC before analyzing the data."
In plain English: Asc is an old-fashioned way to write the word ascent, which means going up higher.
"He ascended the stairs to reach his apartment on the second floor."
Initialism of Australian Sports Commission.
"The athlete received funding from ASC to train at the national center in Canberra."