When I lived on 96th Street, we had a meditation group that met regularly. People brought in music, incense, etc. It was a lot of fun.
Let me see if internet has some historical information--well here is something interesting:
Qigong is practiced with increasing popularity, with an estimated 200 million practitioners worldwide, and its health benefits have been studied for many years. Among its powerful health-promoting effects are: improved blood circulation and microcirculation in the forehead, stimulated appetite, sexual function and digestion, accelerated metabolism, increased mental acuity and focus, and increased energy. Many published studies are reporting the healing power of Qigong in diseases like arthritis, cancer, diabetes and heart disease, to name a few.