Your kindness affects me so sensibly

In the letter to his poet freind, John Hamilton Reynolds, on 2 March 1817, John Keats expressed his thankfulness to Reynolds cause he had sent him a poem which gave praise to John Keats as a poet and which was a great encouragement to him as he just started his carreer as writing poetry. And I like this poem cause it tell the style and the poetical nature of John Keats's poetry in his early stage.
Here is this poem:

Thy thoughts, dear Keats, are like fresh gathered leaves,
Or white flowers pluck'd from some sweet lily bed;
They set the heart a-breathing, and they shed
Tho grow of meadows, morning and spring eves
O'ver the excited soul. - Thy genius weaves
Songs that shell make the age be nature - led,
And win that coronal for thy young head
Which time's strange hand of freshness ne'er breaves,
Go on! and keep thee to thine own green way,
Singing in that same key which Chaucer sung;
Be thou companion of the summer day.
Roaming the fields and older woods among.
So shall thy Muse be ever in her May
And thy luxuriant spirit ever young.

I think this poem did excetly shown the colour, the things, the mood and the time that John Keats often used in his poetry especially in the early stage.