The fullest documented account of a vision quest comes from Black Elk Speaks, the 1932 narrative the Lakota holy man Black Elk gave to the poet John Neihardt, which describes the hanblecheya as embedded in a dense structure of preparation, sponsorship and interpretation rather than as a thing a person simply goes and does.
Black Elk's account, and the ethnographic literature that followed it among the Lakota and neighbouring Plains nations, describes a seeker prepared over time by an elder, purified beforehand often in a sweat lodge, escorted to the site and instructed on conduct, and received back afterward by someone qualified to help interpret whatever came, a role the tradition treats as at least as demanding as the fast itself, since a vision wrongly read is of no use to the seeker or the community. That structure of communal oversight is precisely what commercial versions of the rite, sold since the 1970s by non-Native workshop leaders offering paid wilderness retreats under the same English name, have generally stripped out, retaining the outward form, isolation, fasting, a set number of days, while removing the qualified sponsorship the nations that hold the rite treat as the part that actually makes it work and makes it safe. The Lakota and other nations whose ceremony this is have objected publicly and specifically to that commercial substitution, on the ground that a published ethnographic description, however detailed, was never intended as a manual and confers no standing to conduct or sell the rite to others.