Playing the drum is a very active engagement. Enjoying some time, a few moments before we actually start playing to warm-up, much like playing a sport, can really help get the blood flowing, get your rhythm going. You can do this anyway you like, your favorite music, dancing, playing your body. Either way, a few moments of engaging in a warm up of some kind meditational or physical will help when it's time to pick up the drum and start moving.