When a crowd gathers for the commencement of an event greater than itself, something like magic happens.  The relighting of the old Sag Harbor Cinema sign this past Memorial Day weekend was such a moment. So was the clear April day in 2007 when onlookers lined Pantigo Road to watch several 18th-century buildings carried down the road on trucks to become East Hampton’s  new Town Hall. These gatherings tend to evoke another era, when commemorations and celebrations were more abundant, from the moon landings to bicentennial parades of tall ships in harbors.

As psychedelics gain scientific traction for their healing properties, enthusiasts are diving into enlightenment at weekend retreats by the beach. Sophie Griffin, a young writer, ran into tripping tourism on her spring break, and she had a few questions.