Whatsoever you are doing, remember yourself--that you are. Don't forget it. First remember that you are, and this remember that "I am" must become so basic that it follows you like a shadow. Then even while asleep it will enter, and you will remember. If you can remember the whole day, by and by it enters even in your dreams, even in your sleep, and you you will know that "I am." The day you can know even in your sleep that you are, you are grounded in your center.