The essence of Blake’s entire poetic output, including Songs of Innocence and Experience, is a kind of spiritual philosophical inquiry into and defense of the dual nature of Man’s existence: part physical and part mental. “The Lamb” and “The Tyger” represent the two sides of both these areas—how can there be such beauty and such terror in the same universe? How do we reconcile God’s will (a suspect phrase in Blake’s view) and God’s benelovence at the same time? "The Marriage of Heaven and Hell" deals more thoroughly with this obsession, but the shorter poems seem to grasp the essence more efficiently. His “point” in writing about a lamb may have been to make clear to English farm children the wonders of Nature, by using a symbol they could understand.