Books · 1989
It is because I had so much joy that I came to have so much hate.
— Amy Tan · The Joy Luck Club

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Joy and hate are linked as extremes of feeling, with the strength of one offered as the reason for the other. The sentence does not tell us what changed. That missing story leaves the contrast stark: something once deeply welcome has become deeply painful.
Context reviewed