彼岸花に蜘蛛

In the Taisho era, when Japanese and Western styles were mixed, my best friend who attended the same girls' school as me died.
It was a really sudden event.
Shortly before she died, she told me, "A cluster amaryllis is you."
It was a mystery that she left only for me that didn't have to be solved.
I look back on the past and try to find the meaning of the remaining words.