Mao Collection, Upper Volume. Radical: Heart (xīn). Kangxi stroke count: 11. Page 386, Entry 17. Broad Rhymes (Guangyun), Jiyun (Jiyun), Rhyme Collection (Yunhui), and Correct Rhymes (Zhengyun) all provide the pronunciation mang. It means to be afraid. Book of Master Lie (Liezi), Yang Zhu chapter: Being afraid and having no way to respond. Also, according to Broad Rhymes (Guangyun), it is the same as the character for busy.