I want to see a long-burning candle at the silver flower of the wahoo tree. What do you mean?

"I want to go to the place where the wahoo is in full bloom and see the long bright lights." This sentence is a poem written by Bai Juyi, a poet in the Tang Dynasty, in Farewell to Ancient Grass, which means "I want to go to the place where the wahoo is in full bloom and see the ever-bright lights". Fire tree silver flower refers to flaming trees and shining flowers, which is a metaphor for the bustling scene; The ever-burning lamp refers to a lamp that never goes out for a long time, which means that friendship lasts forever. The whole sentence means that the poet wants to go to a prosperous place, witness the immortal lights and express his thoughts and wishes for his friend's departure.