I liked this poem, spare in words yet long in provking thoughts and large in evoking a sense of futility and hopelessness.
The title was what drew me to it, and your thoughts are original and creatively presented. I think almost everyone can relate to this feeling at some time in their life, --sometimes, no matter how hard you try, you seem to lose ground and you wonder why you bother. But there are obligations and responsibilities that motivate --and there is always that unspoken hope around the corner.
My favorite lines were the closing ones, "The pack grows lighter with every day As the weight on his shoulders increases."
It's just a succinct novel way to describe a universal dilemma, and the weight of your meaning is increased by the minimalism of your lines.