i dont get it, can someone explain it to me, are these arts done after hallucination or something?
they dont look that... you know, out of wack

It's the paper that they put liquid LSD onto. I think they use an eyedropper for each square instead of dipping the whole thing. Tear the paper on the perforations and those are hits or tabs of acid. The art on the blotter paper sometimes determines what that batch of acid is called, like someone might ask for three hits of Snoopy.

thats right. Sad though I have not seen acid in Michigan in years.

^ you just touched my heart