Remembering your self is virtue, forgetting your self is sin. It all boils down to the mental or psychological link between the spirit and matter. We may call the link psyche (antahkarana).
When the psyche is raw, undeveloped, quite primitive, it is subject to gross illusions. As it grows in breadth and sensitivity, it becomes a perfect link between pure matter and pure spirit and gives meaning to matter and expression to spirit.

~ Nisargadatta Maharaj