I quit smoking (medically legal here in Florida) marijuana, because I thought it was giving me arrhythmia. The thing I didn't realize was that it was seriously affecting my REM sleep, and was altering my perception of things around me. My view of spiritual has changed for the better. Not the least of which is a newfound belief that the Holy Spirit was simply a biblical parable that defines modern spiritualism??? As has my participation in sharing with others also changed for the better.