The songs in Selected Poems of Canaan are all hymns, and each capital expresses different emotions and themes. The question "I found my original songs" may not have a definite answer, because none of these songs have specific original songs.
In Selected Poems of Canaan (199 1), each song is composed by a different composer. So every song has a different original author, not the so-called "original singer".
If you want to know the specific background and relevant information of song creation, you can try to find relevant information on the Internet or ask other experienced people. At the same time, we can also appreciate these hymns to feel the emotion and significance contained in them.