It is richt facil and eith gait, I the tell, Forto discend and pas on down to hell: The blak gettis of Pluto, and that dirk way, Standis evir oppin and patent nycht and day; Bot tharfra to return agane on hyght, And heir abufe recovir this aris licht, That is difficil wark, thar lawbour lyis.