Humans don't have (as much) magic as ponies, so they get their psychedelic kicks in... other ways. Fluttershy's friend Tree Hugger has procured a substantial amount of one such way of getting one's kicks. Twilight's about to blast off.
Rated Teen for drug use. Duh. Do not attempt to consume DMT without the guidance of someone who knows what they're doing. Not because it's particularly dangerous, but because it's easy to mess up and waste 40 dollars of DMT.