Critique this poem for me?

The Vision of a Bleeding Heart

I once had a vision

It came in the form of a dream.

I awoke in the midst of this beautiful field

Near the banks of a limpid stream.

It was there that I saw an eagle

That lay dead in a cage of bars –

Completely surrounded by water and food,

Yet, the eagle had starved.

I was overcome by silence…

Unable to say a word.

I pondered at the tragedy

Of such a beautiful bird.

It was like seeing a rich man

With treasures untold

That himself dies of hunger

In the midst of all his gold.

As I gazed into the cage

The bars began to change –

Into the form of a skeleton

Like dried bones they then became.

The eagle then changed into a human heart

That was bleeding with sorrow and grief.

And from the wound from which it bled

It then began to speak.

It said, “I am the spirit of an eagle,

Yet, the heart of a mortal man.

And when you lose what you love the most

It’s more than a heart can stand.

These are not idle words

But a warning I’m giving to you.

Once you lose your freedom

Your heart will break in two.

When you hunger for a love not there –

You’ll starve yourself to death.

Alone, you’ll die in a cage of bars

When nothing else is left.”

I was seeing this with my own two eyes

But not believing what I’d heard.

The skeleton changed back into the cage

And the heart changed back to the bird.