One can use a johae to express gratitude, exquisite joy, deep and meaningful feelings (although if these are lusty feelings, one must be careful since an attempt at a johae can easily transform into a sleazy wink if not careful). Only the luckiest of lucky have had johaes showered upon them.
"Ah! HA! I did it! I finally taught a hoard of chipmunks to sing 'Beat It' in perfect English. All of my hard work has finally paid off, my lusty lover!"
"Oh yes, is this true?" (JOHAE)
"Wow... never have I been so lucky to receive such a glorious johae. That is even more rewarding than all of my long, tedious struggles."