What the caterpillar calls the end of the world the master calls a butterfly.
Verified
insighttransformationbutterflyworldSource: Illusions: The Adventures of a Reluctant Messiah, Richard Bach, 1977
Genuine Bach, from Illusions: The Adventures of a Reluctant Messiah (1977), where it appears as one of the aphorisms in the Messiah's Handbook. Attribution is solid and the source is well established in the secondary literature. Occasionally seen paraphrased as 'What the caterpillar calls the end of the world, the master calls a butterfly' — same source.