I have very much the experience of regressing to a much more primitive state, and flashes of images of myself as a stoned, contemplative chimp or common ancestor, looking at the outside world through the eyes and mind of a creature who does not understand lightning and thunder, rainbows, the northern lights or any of the other lights in the night. I tend to squat and let my fingers brush, twist and rip up little stands of grass, twirling them like a little girl twists and plays with the ringlets of her hair or a cat with a piece of string. It's very strange and potentially embarrassing to be struck with this compulsion to act like a dumbstruck ape staring for long stretches at my campfire while I pet and brush the texture of my lawn (especially when it's long), but hey, that's what psychoactive substances are for--exploration and opening up parts of the mind in a spirit of exploration, free from judgement or negativity.
Typically, there is not anyone of my neighbours who would ever stop by or see into my yard enough to make me feel self-conscious. And happily, none of them are people I would really feel embarrassed to tell I was having an experience on mushrooms, kindly fuck off or pay no attention to the yard ape for a few hours so kindly fuck off or ignore him if you need to barbecue at 11pm or otherwise go out onto your back deck and look over the fence into the neighbour's yard.