“If you are depressed you are living in the past.
If you are anxious you are living in the future.
If you are at peace you are living in the present.”

― Lao Tzu

I may have already posted this quote, but i wasn't able to find it. (I really need to organize the quotes better!) Anyways, there is so much truth to this. When i think of the times in my life that i was down and depressed, i was either longingly remembering the past, or lamenting decisions and actions of the past.  And the times I feel anxiety it is usually when i am fretting about something in the future or fears of future events, etc... little children are great examples of living in the present.