sunset or sunrise, alone, in view of it or in my room, with the right music. I often have the Nine inch nails album "ghosts" on which is purely instrumental weirdness (Check it out) or coil's "time machines" album which actually SOUNDS like the tinnitus you get from dmt itself, so it definitely amplifies the experience for me. If you have the means, definitely check out that coil album
With every great plan comes the pleasure of patience. Take a rest, and grab a suckle off the teat of life!