And in that moment, he was finally able to accept it all.  In the deepest recesses of his soul, Tsukuru Tazaki understood.  One heart is not connected to another through harmony alone.  They are, instead, linked deeply through their wounds.  Pain linked to pain, fragility to fragility.  There is no silence without a cry of grief, no forgiveness without bloodshed, no acceptance without a passage through acute loss.  That is what lies at the root of true harmony.

--Haruki Murakami, Colorless Tsukuru Tazaki and His Years of Pilgrimage