The act of smiling has been scientifically proven to have numerous benefits, both physically and mentally. It can improve your mood, reduce stress levels, and even boost your immune system. This is why it is important to remind ourselves to smile every day. In the context of the article, "7 Inspirational Messages Written in the Snow," the message of smiling serves as a reminder to find joy and positivity in our daily lives, even in the midst of difficult times. It encourages readers to spread happiness and kindness to others through a simple smile. So, let's all remember to smile and spread positivity wherever we go.