Riff on a John Clare Poem but which one?

Where is the sun when I arise?
I want some bird to sing
To dream her song in sleep’s demise
Each dawn is a birth
For a moment’s ease, ceased burden
The night’s release, unwelcome
I love the sun, the beckoning glow
That enriches everything
It enjoins everything below
Like swallow’s spiralled wing
A motion magical, in flight,
A glimpse and then, a parting light.