The best explanation of this I have ever heard, was in a recent podcast: “Start with human experience: an audio essay from James Buckhouse”. Yes, James Buckhouse of Dreamworks, Twitter and Sequoia Creative Lab fame. I lack the vocabulary to convey just how moving and meaningful this is to me, and hopefully is and will be to everyone working in field of UX or design. It is so profoundly important, I invite you to please stop reading presently and go listen. It’s only 14 minutes. I’ll wait.