The great Albert Einstein once said, "Learn from yesterday, live for today, hope for tomorrow." The ancient Chinese philosopher Lao Tzu believed that "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." Both men echo Francis Bacon Sr., who said, "Begin doing what you want to do now. We are not living in eternity. We have only this moment, sparkling like a star in our hand -- and melting like a snowflake." The gist of these quotes is that we should live in the moment -- otherwise known as mindfulness.  The dictionary defines mindfulness as "a mental state achieved by focusing one's awareness on the present moment, while calmly acknowledging and accepting one's feelings, thoughts, and bodily sensations." In other words, it involves being cognizant of your physical and emotional state without being judgmental.  Most peopl...