>> pollan: no. it gives me the willies, as a writer.t, because during one of my experiences, i came to the earth-shattering conclusion that love is the most important thing in the universe. but it's-- that's hallmark card stuff, right? and, so-- >> cooper: and yet, while you were on it, and afterward-- >> pollan: it was profoundly true. and it is profoundly true. guess what? >> cooper: there's a reason it's on a hallmark card. >> pollan: there is a reason. and one of the things psychedelics do is, they peel away all those essentially protective levels of irony and, and cynicism that we, that we acquire as we get older, and you're back to those kind of "oh, my god. i forgot all about love." ( laughs ) >> cooper: pollan said he also experienced what the researchers describe as ego loss, or identity loss, the quieting of the constant voice we all have in our heads. >> pollan: i did have this experience of seeing my ego burst into a little cloud of post-it notes. i know it sounds crazy. >> cooper: and what are you are without an ego? >> pol