The cost of living

What price must we pay, To simply be? The toll for existence, Incurs a fee. Each breath we take, Each step we make, Extracts a cost, A price we must pay. We pay for food, water, For all resources consumed, For heat, power, light, For each a debt is accrued. We were born completely free, But, when we opened ours eyes. It was the toll of debt, We saw in the skies. Why does it have to be? In the material world, Its entropy's fee, we must fight To stave off decay. For as heterotrophs We must consume the structure Of plants and animals To maintain our structure. Oh, to be a plant To live cost-free, As an autotroph Bathing free, in the sunlight. The cost living Is the price we all pay, The toll to exist, Our destiny.