From The Return of the King, either in the middle or toward the end:
And all the host laughed and wept, and in the midst of their merriment and tears the clear voice of the minstrel rose like silver and gold, and all men were hushed. And he sang to them, now in the elven-tongue, now in the speech of the West, until their hearts, wounded with sweet words, overflowed, and their joy was like swords, and they passed in thought out to regions where pain and delight flow together and tears are the very wine of blessedness.
What on Middle-earth is this supposed to mean?! It's one of the most "out there" sentences in the entire story IMO.
Regions where pain and delight flow together? And where tears are the "very wine of blessedness"? I truly do not even have a guess for this one. How can tears be considered blessed, if that is what is meant?