How does Joseph Campbell use imagery in Myths to Live By?

Example of Imagery:

"It is an inevitable, altogether natural thing that when energies that have never met before come into collision — each bearing its own pride — there should be turbulence. That is just what we are experiencing; and we are riding it: riding it to a new age, a new birth, a totally new condition of mankind — to which no one anywhere alive today can say that he has the key, the answer, the prophesy, to its dawn."