Definition & Meaning of "blow one's mind"

What is the origin of the idiom "blow one's mind" and when to use it?

The idiom "blow one's mind" originated in the counterculture movements of the 1960s and 1970s, often associated with the use of mind-altering substances. This expression is commonly used to express the idea that something is so extraordinary that it has a profound impact on one's thoughts or emotions.