The word 发自 (fāzì) is a verb-object compound formed by the character 发 (fā), meaning "to send out", "to issue", or "to express", and the preposition 自 (zì), meaning "from" or "since". Together, they create a phrasal verb meaning "to emanate from", "to issue from", or "to proceed from", most commonly used to describe something (like emotions, statements, or actions) originating deeply from a source, such as in the classic phrase 发自内心 (fāzì nèixīn), "to come from the bottom of one's heart".