That to me, defines poetry.
The moment art, beauty, nature, captures you, pulls you, pushes you, the instant you change for something around you, or because of it, you experience poetry.
I have been stirred by sweeps of color on canvas, by literature that rolls like thunder or a tugging tide. Music will lift or move me to tears, and the glint of an eye or the tilt of a smile can harm or heal me.
This is poetry. And those who inspire it, those who have the power to hold it and bring it, make it new again and again, these are the poets.
Whether it be by rhyme, word, or reason, the Masters need not follow a rule to create poetry. They simply follow their hearts.