I've been reading Osho's work for a good few years now.. since 17 years old.. and I have to thank my student at that time for letting me borrow his mum's Osho book.. and every now and then , i'll flip through the pages and try to blend in Osho's teachings and everything else that I know.. here's something by him on pain..
"This pain is not to make you sad, remember. That's where
people go on missing.... This pain is just to make you
more alert--because people become alert only when the arrow
goes deep into their heart and wounds them. Otherwise they
don't become alert. When life is easy, comfortable, convenient,
who cares? Who bothers to become alert? When a friend dies,
there is a possibility. When your woman leaves you alone--those
dark nights, you are lonely. You have loved that woman so much
and you have staked all, and then suddenly one day she is gone.
Crying in your loneliness, those are the occasions when,
if you use them, you can become aware.
The arrow is hurting: it can be used. The pain is not to make you miserable, the pain is to make you more aware! And when you are aware, misery disappears."
From Take it Easy, Volume 2 Chapter 12
More on OSHO !!!