translation.en: It's also the very first letter of the word shalan, which means "something" just like the the English word "something" -- some undefined, unknown thing.
translation.zh: 它也是 “shalan”这个词的首字母， 意思是 “某物”。 就跟英语中的“某物 ”一个意思， 代表某些未定义或未知的东西。