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·phy fəˈläsəfē / noun noun: philosophy the 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.