Lyric discussion by SmokeyJ 

Cover art for Incense and Peppermints lyrics by Strawberry Alarm Clock

To me, this song is about how psychedelic drugs are good; and how staying away from them harms you. "Good sense, innocence, cripplin' mankind"-- they're saying that society's views on drugs are flawed and their parents "common sense" on the subject is crippling mankind. Basically, this song promotes drug use.