When you puff on some nice indica, you sit on your couch. You fell it kind of creeping up on you. Then all of a sudden you fell a shock go through your body. Your whole body is vibrating and tingling, but not like "dude this is cool but it doesn't fell real" is more like "Holy Shit, is this shit happening fo realz or am i just high?". You scalp fells like its tingling like a feather is brushing against it. And your head fells like it has so much pressure in it that its gonna pop the fuck off.