I remember having recurring dreams in which I would fall into the gap in the elevator or between the subways/trains and the plattform, etc. and then jolt away with a whole-body flinch.
The dreams went away as I got older, but I still grip stuff (e.g. my phone) as tightly as I can if I have to carry it across those gaps ^^


I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past I will turn the inner eye to see its path.
Where the fear has gone there will be nothing. Only I will remain.