You mean, “Like a Cheshire cat?” That’s easy!
Writing a great piece, whether fiction, poetry, or nonfiction. I love to write, live to write, know of no other work or action that so completes my soul like fashioning a great sentence, a provocative line, a paragraph that draws the reader so intimately into the frame that s/he becomes, with no will to resist, part of the image itself, part of the creative and created act. Ah! Art achieved, destiny fulfilled!