Literature Reference: 莫怪相逢无笑语，感今思旧戟门前。—— 《重到城七绝句 裴五》 Do not blame our meeting without laughter, as we reminisce the past before the halberd gate. Source from 'Chongdao Cheng Qijueju Pei Wu'.
思: Thought, intellect. In names, it often signifies quick thinking, sharp wit, and intelligence.
旧: Outdated, in contrast to "new." A surname. The meaning of the character is ambiguous, so it should be used cautiously in given names.
Meaning: Reflecting on the past with deep emotion and nostalgia.