Among them are those who are in the frame of heavy clouds, or in the height of lofty mountains, or in the gloom of over-powering darkness. And there are those whose feet have pierced the lowest boundaries of the earth. These feet are like white ensigns which have gone forth into the vast expanse of wind. Under them blow the light wind which retains them upto its last end. Occupation in His worship has made them carefree, and realities of Faith have served as link between them and His knowledge. Their belief in Him has made them concentrate on Him. They long from Him not from others. They have tasted the sweetness of His knowledge and have drunk from the satiating cup of His love. The roots of His fear have been implanted in the depth of their hearts. Consequently they have bent their straight backs through His worship.