"More mind altering" is a phrase that is used to describe something that has a profound effect on one's cognition and mental state. There are several synonyms that can be used to convey a similar meaning, such as intoxicating, psychedelic, hallucinogenic, trippy, mind-bending, mind-expanding, and transformative. These words can be used to describe anything that has the ability to alter one's perception of reality, including drugs, music, art, and even natural experiences such as meditation or lucid dreaming. However, it is important to remember that some of these synonyms may be associated with negative connotations and potential risks, and should be used with caution and in appropriate language contexts.