灯火难删处依然有你
[dēng huŏ nán shān chŭ yī rán yŏu nĭ]
This username implies a sentiment of someone unforgettable. The imagery of 'light' represents hope or nostalgia, and it signifies that despite difficulties ('hard to erase'), the person or memory symbolized by 'you' is still lingering in the speaker's mind.