Woke up tense with a racing mind, so I practiced my morning meditation on a bed of nails.  My Shakti Mat makes me slow down, breathe deep & be here in the moment. The tiny nails stimulate my body so intensely that it releases muscle tension, just as long as I let go & relax onto them. Just finished about 2 minutes in tadasana standing on it, & about a minute on both sides of my face!  I highly recommend it.