Some people have seen the heavens open up. Others have heard the angels cry. Some have both seen and heard amazing things. While these experiences are precious, they are not the reason we practice.
Is it for the realization of such samadhi states [hearing and seeing things] that monks lead the holy life under the Buddha?
No, there are other things, higher and more perfect than these, for the sake of which monks lead the holy life under me.
If you’re trying to hallucinate, eat LSD.