What they have joined is more than just a fitness class.
It's strength. It's learning. It's passion. It's friendships.
It's you being proud of what you can do. Looking forward to how much better you will be tomorrow than you were yestreday.
It's you enjoying life to its fullest. Because you have the energy to do so.
It's the high-fives after the bell finally hits the ground. It's the cheers when you break your limits. It's the laughs when you roll and tumble around - because you don't need to be a child to play.
Ultimately it's you being able to play with your grandchildren / dogs when you turn 80.
Because all this is about you. Now and in the future.