I've done it when salvia hits my blood. With dmt I'm a newb and I dont think I know anyone that even knows what it is at this point, let alone what to do with it.
With salvia though, somehow.. it's usually being taken back to a place long forgotten. That's the laughter. The pure joy of being shown that, we will go back. This life and all it leads you to believe is just some sort of "college course" and amnesia is really really prevalent. So the opening up of "what really is" is just pure joy and I find myself laughing.
The talking part, (which is usually just mumbles even though Im speaking clearly in my mind) is the talking to or answer or...just my reaction/thoughts.
You know? They remind me not to give up, then show me a lesson to spread around, and then it's like the tail end of a phone call. It's like, thanks for calling I've missed having these chats man. Forgive me if I don't call back in awhile, I got this job and it keeps me pretty busy, but I'm always thinking of you. One day maybe we'll get a sixer and some fish and sit around that campfire like we used to do. Until then, take care..
Sometimes it is literally me saying, holy shit .. what the fuck is another thing I find myself saying (mumbling) pretty consistantly.
But the laughter is usually a response to the revelation, and the talking is me answering back to the people that are without a doubt there (here) all the time.