心头

心头 refers to the heart or the mind, often used metaphorically to express emotions or thoughts. It is commonly used in phrases to describe something that is deeply felt or thought about.

The character 心 (xīn) means 'heart' and 头 (tóu) means 'head' or 'top'. Together, they literally mean 'the top of the heart', which is a poetic way to refer to one's innermost feelings or mental state.

Headache is often used in Chinese expressions related to emotional states, such as 心头一紧 (xīn tóu yī jǐn), meaning 'a sudden tightness in the heart', often used to describe surprise or anxiety. It is also used in idioms and proverbs to convey deep feelings or thoughts.