Mary Oliver is one of my favorite poets.  If you are not familiar with her poems, they are infused with the natural world and contain so much wisdom that they are a balm for my soul.  A couple of my favorites of hers are "The Summer Day" and "Wild Geese".  Google them and read them.  They'll give you a taste of what her delicious poems are like.  This collection is pretty much standard Mary.  A feast for the senses and emotions.  I highly recommend this, or any other collection of her poems.  Here's one of my favorites from this book:
To Begin With, the Sweet Grass
1.
Will the hungry ox stand in the field and not 
eat
of the sweet grass?
Will the owl bite off its own wings?
Will the 
lark forget to lift its body in the air or
forget to sing?
Will the rivers 
run upstream?
Behold, I say - behold
the reliability and the 
finery and the teachings
of this gritty earth gift.
2.
Eat bread and understand comfort.
Drink water, 
and understand delight.
Visit the garden where the scarlet trumpets
are 
opening their bodies for the hummingbirds
who are drinking the sweetness, who 
are
thrillingly gluttonous.
For one thing leads to another.
Soon you will 
notice how stones shine underfoot.
Eventually tides will be the only calendar 
you believe in.
And someone's face, whom you love, will be as a 
star
both intimate and ultimate,
and you will be both heart-shaken and 
respectful.
And you will hear the air itself, like a beloved, whisper:
oh, 
let me, for a while longer, enter the two
beautiful bodies of your 
lungs….
4.
Someday I am going to ask my friend Paulus,
The dancer, the potter,
To make me a begging bowl
Which I believe
My soul needs.
And if I come to you,
To the door of your comfortable house
With unwashed clothes and unclean 
fingernails,
Will you put something into it?
I would like to take this chance.
I would like to give you this chance.
5.
We do one thing or another; we stay the same, or we 
change.
Congratulations, if
You have changed.
6.
Let me ask you this.
Do you also think that beauty exists for some 
fabulous reason?
And if you have not been enchanted by this 
adventure-
Your life-
What would do for you?
7.
What I loved in the beginning, I think, was mostly 
myself.
Never mind that I had to, since somebody had to.
That was many 
years ago.
Since then I have gone out from my confinements,
though with 
difficulty.
I mean the ones that thought to rule my heart.
I cast them 
out, I put them on the mush pile.
They will be nourishment somehow 
(everything is nourishment
somehow or another).
And I have become the 
child of the clouds, and of hope.
I have become the friend of the enemy, 
whoever that is.
I have become older and, cherishing what I have 
learned,
I have become younger.
 
And what do I risk to tell you this, which is all I 
know?
Love yourself.  Then forget it.  Then, love the world.