I think we are the essence of desire, without which we would all die anyway. hasn't anyone ever suffered depression? I have and I had what I needed but still, i was 'dead' so to speak, even though I ate, slept, had shelter and water I still couldn't feel alive. So in my oppinion, DESIRE comes first...because without the desire to live I didn't want to eat.
I can relate very much relate to that. I think wants and needs are equally important but I think it's the wants that bring us happiness..