Here is a good summary of the relative dangers of drugs: http://www.vox.com/2014/5/19/5727712/the-three-deadliest-drugs-in-america-are-all-totally-legal Remember, it doesn't have to be logical or reasonable or rational or any of that... sigh
Haha, yeah... althooooough, some people sometimes add 2-3 or so seeds (a sub-deliriant dose I guess) to other substances. I've never felt called to try that.
Unless of course you are familiar with the "ancient art of moderation" Then it can be a rather plesant experience and disturbingly "eye opening" during one's dream state while sleeping. http://www.thaliatook.com/AMGG/momoy.php