Thus while the days flew by

Thus while the days flew by, and years passed on,
From Nature and her overflowing soul,
I had received so much, that all my thoughts
Were steeped in feeling; I was only then
Contented, when with bliss ineffable
I felt the sentiment of Being spread
O’er all that moves and all that seemeth still;
O’er all that, lost beyond the reach of thought
And human knowledge, to the human eye
Invisible, yet liveth to the heart;