Wonderful post from endlessness. To continue:

Various Psilocybe mushrooms can be found growing wild in some parts of the US, or you could easily cultivate Psilocybe cubensis. A good place to start is the Shroomery (although the attitude there is, honestly, utter crap compared to in here) and the PF-tek if you want to cultivate.

I would suggest you start with around 2g of P. cubensis or an amount similar in strength from another psilocin/psilocybin containing mushroom. If you enjoy what you experience, you could take perhaps 4g of mushrooms, in that dosage range you start seeing what these entheogens are really about.

If you still want to ride the train even further, I think it is time for DMT. Ayahuasca is - at least to me personally - much more healing than smoked/vaporized DMT. The ingredients may be purchased at internet shops based in both US and abroad, and this wonderful thread from ms_manic_minxx teaches you next to everything you would need to know about Ayahuasca.

After having tried Ayahuasca, you could try pure DMT. Or you could try pure DMT first, it doesn't really matter. The best way to go about this is to extract your own DMT from Mimosa hostilis, which also is available both from the US and abroad. All you need for this is to be found on our Wiki.

Note that this in no way is the only good way to go, but personally I can't think of any better ways. Feel free to experiment, follow your inner voice and be spontaneous, for these experiences are really all about coming into better contact with oneself.

Best of luck! And please, do ask if there's anything on your mind!