The intellect of most persons is harnessed by innumerable wants. Such a life is, from the spiritual point of view the lowest type of human existence. The highest type of human existence is free from all wants; and it is characterised by sufficiency or contentment.
It is your right to be happy and yet you create your own un-happiness by wanting things. Wanting is the source of per-petual restlessness. If you do not get the thing you wanted, you are disappointed. And if you get, you want more and more of it and become unhappy.
You are infinite. You are really everywhere. But you think that you are the body, and therefore consider yourself limited. If you think you are the body which is sitting, you do not know your true nature.