What was william wordsworth's philosophy in the "rainbow"

"The Rainbow" (1802) My heart leaps up when I behold
A rainbow in the sky:
So was it when my life began;
So is it now I am a man;
So be it when I shall grow old,
Or let me die!
The Child is father of the Man;
I could wish my days to be
Bound each to each by natural piety.

phi·los·o·phyfəˈläsəfē/nounnoun: philosophythe study of the fundamental nature of knowledge, reality, and existence, especially when considered as an academic discipline.

With that information what could you possibly infer.