Many think that spiritual attainment can be achieved by a great labor. No, labor is necessary for material attainment; for spiritual attainment what one needs is the seeking soul like that of Moses. Moses' falling down upon the ground may be interpreted as the cross, which means, "I am not, Thou art." In order to be, one must pass a stage of being nothing. In Sufi terms it is called fana, when one thinks, "I am not what I had always thought myself to be."