The real sting here isn't merely permission to be yourself—it's the challenge to stop *consuming* other people's conclusions about what's possible. Rumi distinguishes between hearing about someone else's journey (which we absorb passively, as settled fact) and actively composing our own story as it unfolds, which requires the discomfort of uncertainty. When a friend tells you they couldn't make a career change work, you're tempted to add that failure to your mental inventory of "how things go"; Rumi insists you're different, untested in that particular way, and therefore obligated to try. The word "myth" matters too—he's not asking for mere authenticity, but something stranger and grander: a life shaped by your own logic, not by the cautionary tales you've collected.