I don't think it was too short as mentioned below. It is whatever it will be, and is exactly how you intend it to be. Dreams and fears are strange things indeed, rife with symbolism. It takes a strong person to bare them open for the world to see.
I thought the phrase about the moon was especially powerful. A secret, and perhaps a fear as well. Celestial associations bring some of our most vivid fears to life in dreams.
I dont agree totally sometimes I think writers thrown in phrases or ideas so that the reader may take from the poem a whole new idea than why it was written. The rhyme scheme flowed for me but I write spoekn word so we dont really follow a ceratin scheme- I enjoyed it
I was expecting a bit more description. Some sort of surreal journey through your dream world. This fell really short. The first sentence is good except for the comma after things (remove). Your young man? Who is this? And who is "your"? You do not describe him at all, nor do you describe his pain or the importance of any of this. Need more details.
You also pick some odd choices for words. Assimilate just doesn't work. An assimilation is a thorough understanding of something and if this was the case, it would not lead to you nearly fainting. Also, it would be "I assimilate his pain". If you keep it the other way, you will have to put in what you assimilate with his pain.
I don't really get a "sick desparation of greed" either. First I believe you meant to use desperation, but this doesn't fit because desperation is a loss of hope, which does not go with greed, which denotes a desire for more. Finally, greed is not a need nor does it create a need and can actually only be met once needs are already met, and one still desires more.
Lastly, a "quiet undertow"? How does this go with anything you have previously stated? Try to watch out for any text that does not work with and support your main story/themes. There is no ocean, beaches, or waves, so try to use something that reinforces your main premise. Also, I have never heard a loud undertow, so quiet doesn't mean much at all.
What was the secret? Was it the mine? Why is this a secret? This needs more explaination
There really needs to be more descriptive elements to this. Without added descriptions, this appears vague. Instead of saying "where men have tried to mine", describe these miners, what they look like. Imagine that I went on a spaceship and saw a completely alien world, came back, and told you "They showed me a secret, I feel I learned something." Would you be ok with that? Would you want more? Of course! So give more.
My Writing:
I am not a writer by education or by discipline. My poems are like dreams that become complete when given words. From the place beyond words they grow fingers and ask to be born. They tin.. more..