blow one's mind

Alter one's perceptions, especially through drug use, as in Taking LSD really blows one's mind . [ Slang ; 1960s]

Surprise, shock, or amaze one, as in This jazz group blows my mind , or Joe served a jail sentence? That blows my mind . This term is used rather loosely, as seen in the examples; the first signifies amazement and pleasure, the second shock and dismay. [ Slang ; 1960s]

Make insane, drive crazy, as in Was it his wife's death that blew his mind? or Losing her savings blew her mind . [1960s]