Nature's dissatisfaction

No man can say with certainty that his life is fulfilled.Because life consists of so many levels and layers. We have our physical life, our psycological life,our emotional life and then our spiritual life.Sounds like Maslow's theory of heirarchy of needs!After great struggle one may succced in physical life,may amass wealth,may provide help to many,may be known in society. But all this is physical. One may be a failure in emotional and psychological levels. Similar is the case with other layers. The truth is this... one can attain only partial success in all the layers. And mostly the spiritual layer remains unfulfilled. Because this is the deepest layer in a human being and this remains unfulfilled, a feeling of dissatisfaction remains even when everything is fulfilled in the life. That is the reason why everyone feels unhappy at the end. On the contrary, when this layer is fulfilled, one attains peace even when other layers are unfulfilled. This is the case with most of the sages. Now what is meant by fulfilment of spiritual level? It means knowing who one is and what is his relation with the universal force. Not from books or from learned persons, but by ones own inner experience. If this is known everything is known.If this is not, all is futile. Nature knows this secret and so there is a perennial dissatisfaction in everyone until this deeper urge is fulfilled. It is nature's eternal call to us... Know thyself first. But we care little and suffer life after life.