It's just that this sentence has a special rhythm of poetry.
The only difference between sentence patterns and sentence patterns is that there may not be rich sentence elements.
take for example
I love you, both subject and object.
But loving you is a word. It has no subject. This is a verb-object phrase.
It is this simplicity that creates its rhythm.
Things are different, this is an idiom and a phrase. This description without branches and leaves highlights the grandeur of this word.
I wish you progress in your study, hehe