Poem summary

Hello teachers,
Could you please tell me the summary of the poem [ Trees] . I searched a lot everywhere but i couldn't find it please help me.

I think That I shall ever see,
A poem lovely as a tree
A tree, whose hungry mouth is pressed
Against the earth's sweet flowing breast
A tree that looks at God all day
And lifts her leafy arms to pray
A tree that may in summer wear
A nest of robins in her hair,
Upon whose bosom snow has lain
Who intimately lives with rain
Poems are made by fools like me
But only God can make a tree

Thanks in advance