Interestingly, there is a drug call datura, a beautiful white flower you can find all over suburbia, whose seeds when drank in a tea are an extremely powerful deliriant.
If you read the trip reports of it (which are pretty fascinating tbh) you notice a common trend of people hallucinating that they are smoking a cigarette, and then they drop it, only to search around and be unable to find it. This is usually one of the first tip-offs they have that something is happening before they totally get lost in the void. Really fascinating how many people on there had this same common experience while taking datura specifically.
If you read the trip reports of it (which are pretty fascinating tbh) you notice a common trend of people hallucinating that they are smoking a cigarette, and then they drop it, only to search around and be unable to find it. This is usually one of the first tip-offs they have that something is happening before they totally get lost in the void. Really fascinating how many people on there had this same common experience while taking datura specifically.