The answer to yesterday's riddle is NOTHING!
Congratulations to Redcat, Quaerens, Christy & Adam for figuring it out :-)
And while we are on the theme of NADA, here is a wise quote from St. John of the Cross:
“If you purify your soul of attachment to and desire for things, you will understand them spiritually. If you deny your appetite for them, you will enjoy their truth, understanding what is certain in them.”