盛夏拾荒暖无疑嘁冬人海冷刺骨
[shèng xià shí huāng nuăn wú yí qī dōng rén hăi lĕng cì gú]
In 'Warm undoubtedly to pick up scrap in midsummer, but cold pierces to the bone in the sea of people in winter', this shows contrasting feelings. While summer represents hopeful and warm experiences even if they are humble (like scavenging), winter symbolizes isolation and chill when among crowds.