Sometimes in the mountains and seas and sometimes in the human world means occasionally swimming in fantasy and occasionally returning to reality. Give myself peace of mind and give me everything I wish for. Sometimes in the mountains and seas and sometimes in the world is a modern poem. The poems describe the author's yearning for freedom and the free and easy life. Sometimes in the mountains and seas, sometimes in the human world, it belongs to modern poetry, also called "vernacular poetry", which is a type of poetry. Compared with classical poetry, it generally does not adhere to format and rhythm.