Peace is not something you can force on anything or anyone... . much less upon one's own mind. It's like trying to quiet the ocean by pressing upon the waves. Sanity lies in somehow opening to the chaos, allowing anxiety, moving deeply into the tumult, diving into the waves, where underneath, within, peace simply is.
Prayer is that divine seed whose roots draw food from earthly existence. Like the lotus flower that does not bloom in arable ground but in marshes, prayer thrusts its roots into human misery as if into mud. But the lotus flower does not show any trace of the muddy water from which it drew life; turned toward the sky, it blooms.