Mountain climbing it is then.
Hmm.
All the pain of this world condensed into a single, impossibly excruciating moment that you have no means of preparing for. (A full minute, in this case)
or
All the pain of this world slowly inflicted upon you evenly until the day you pass on.
Pain on all levels, that is to say, physical, mental and so on and so forth.
And no, I am not (intentionally) making a reference.