All day they sailed towards it, and sometimes it vanished from their view, but it returned constantly.  On the third day they came to that land.  Bright and beautiful it was to their sea-wearied eyes; and of a surety no land is there that goes so nearly to heaven.  For it rose in green and flowery heights till it was lost in a ring of dusky sea-cloud; and through this vast ring of cloud it pierced its way, and the Sea-farers saw it emerge and stand clear above the cloud, bluish with the distance.  And higher still it rose, and entered a second great cloud-ring, but this ring was white; and once more it emerged from the cloud-ring, and high over all towered the pyramid of shining stone.