Load a big bowl in a water bong, regular lighter is fine, keep the flame on the bowl the whole time, take a big hit, hold for 30 secs, and fucking lay down. Better to have someone there but if you are good with the physcedelics, never freaked out for any shit, then you'll be ok. Only downside to salvia is it only lasts about 10 min...maybe less. The residual effects lasts longer but yeah...fun while you're flying!