烟只是用来掩饰心疼痛
[yān zhĭ shì yòng lái yăn shì xīn téng tòng]
Suggests that smoking cigarettes are used to mask internal heartache—nicotine use acts merely as a temporary distraction/numbing agent from deeper psychological anguish. Smoking here symbolizes avoidance tactics to evade confronting one's own pain.