Falling is fun. Both types, I mean. Falling down physically and mentally falling into those touchy areas yet to be fully explored, charted, defined. Both types of falling scare people most of the time, but if you cause the fall to happen, or prepare for it, it can be the most wondrous thing ever.
The difficult part is the act of hitting the ground, or suddenly becoming reconnected with "reality". Both endings can be painful. Mindfalls can be maintained with practice, to continue for a bit after interruption.
A daydream is a stumble into the fabric of being. Dreams are long falls. Dementia and beyond are results of taking the pledge, for you