What I most took away from my 21-day Juice Feast was the principle of balance. Having wrestled with a tendency to vacillate between extremes in lifestyle, diet, emotion, and thought, I longed for a sense of peace and wellness. While to many people the idea of living on juice for 3 weeks could seem extreme, I found that what it unearthed in me was a deeper sense of what it meant to find equilibrium and calm.