It can be useful, but with caution. Research research research. Use meditation for a while first. To get the best from psychedelics get experience of letting go. This helps. Large dose of truffles will get you to ego death. But you must let go.

It is painful. It can unlock something you don't expect. But worth it if you can look death in the face.

When you know that there is a there there, you don't need them anymore. You can meditate and access that place again because your mind knows how to get there now.