This mural has been built upon by the same artist since its first version was painted in 2012. Matas' loose, textured style and the mural's title both borrow from Buddhism, a philosophy that plays a major role in the artist's life.
Matas re-did the mural's bottom portion after it was tagged with graffiti, when he covered it with figures shown looking at their mobile devices. Since then the mural's been repainted and reshaped a number of times.
From the artist's interview on SF Weekly:
"The first time, the house was a unified thing. I had no idea I'd be doing an ongoing, evolutionary mural. It was blue into teal into white, top to bottom, using the words 'form' and 'emptiness,' and blending them into one another.
I don't know if anybody could see it, but there was a profile of a face at the bottom. We normally associate the face with form. And the space around with emptiness, but I switched that, so the face was all made up of the word 'emptiness,' and the background was made up of the word 'form.' They blended into one another."
755 Valencia Street, between 18th and 19th