Ashtavakra Gita

 That which has form is not real. Only the formless is permanent. Once this is Gnown, you will not return to illusion. Just as a mirror exists both within and without the image reflected, so,the Supreme Self exists both within and without the body. Just as the same space exists both within and without a jar, the timeless, ALL-pervasive One exists as Totality,-As The ALL that IS, was or ever will be