It's a poem (not a proverb). Everyone has wishes. The heavens will grant us our wishes. I wish we were beasts in far-off lands. Every step we took we would take together. I wish we were trees deep in the mountains. Every branch of ours would be intertwined. --- This is someone proposing to be very close friends or lovers! If you use a western method of literary analysis, the imagery is sexual: beasts, intertwined.

The first sentence. I did not translate Want to be your partener like an animal, and always walk together. Want to be your half like the tree, and we link each other.

哪里来的诗， 一点营养都没有。 （ What is your point, exactly.)