The secret of health for both mind and body is not to mourn for the past, not to worry about the future, or not to anticipate troubles, but to live in the present moment wisely and earnestly.
Buddha (563 BC-483 BC) Founder of Buddhism.
I wasted yesterday by wondering what was going to happen tomorrow... which is today. Living in the moment is the difference between anxiety - over what cannot be anticipated, and just trusting that everything will unfold as it should. Just for today. So today I will let go and let God. I will exist in the moment.