"A Smile" by Hootie & The Blowfish is all about the power of a smile to bring positivity into our lives. The lyrics describe the journey of a man who is sent into space and returns to Earth with a newfound appreciation for the simple things, like a smile. He believes that a smile can help bring people together and create harmony. The song encourages listeners to appreciate every moment, both good and bad, and to smile through it all. It also suggests that we should forgive even our enemies and try to find common ground, as this will ultimately lead to greater happiness and peace. Overall, "A Smile" is a feel-good, uplifting song that reminds us of the importance of positivity and kindness in our lives. It encourages us to always look for the good in others, to smile through the tough times, and to keep pushing forward towards a brighter future.