off course not.. u cant hallucinate, hear colors, see sound.. duh.. but if u mean just feelin good.. well nothing is really like a drug, but sometimes just meditatiing and some nice music will help u feel good
or go into a completely pitch black room for an hour or two. its like a poor mans sensory deprivation experience.
enlightenment , delusion to its natural effect and the placebo to its power, not great if your looking for it like that though
If you really wanna trip you need drugs. Or meditation like people suggested. But thats nothing compared to drugs.
Meditation can very much be a 'psychedelic' experience. There are people who train their whole lives to reach such states by meditation.
You can reach states similar to lsd with meditation. You have to be good though. If you could reach some kind of ego death while sober, youd be considered pretty high in the luminous road. Like someone said lsd is like meditation, but with training wheels.