A student of mine quoted something in reference to a famous
symbol on Ryoanji Temple which basically means, "I only know
what is eough." He said the symbol was based on the last
teaching of the Buddha before he died. He quoted that teaching
as, “You Bhikku! If you want to escape from suffering, you have
to comprehend the realization of enough. The basis of realizing
enough is comfort and peace. The one who realizes enough would
be comfortable even if he slept on the ground. The one who does
not realize enough would be uncomfortable even if he were in
palace. The one who does not realize enough would be poor even
if he were rich. The one who realizes enough would be rich even
if he were poor. That is called realizing enough.” Any ideas on
which sutra this quotation may have come from? I had guessed the
Mahaparinirvana Sutra, but I'm not sure this is so.