Riding my bike brings me to center. Can this be duplicated by any physical activity? No, not for me, not int he same way. Riding my bike is something I love to do; I have been riding since I was about 9 more or less continuously throughout the years. I get on the bike and it feels like an extension of my body and it feels good.
why does this bring me to center? Because I love it and that will never change. By practicing something I love it gives me a reference point to what love feels like and if I continuously practice feeling myself expressing love, I can stay in that place more often.