A Harmonic Convergence in Union Square.

The article examines the Union Square neighborhood in Manhattan, New York City. Site of the U.S.'s first Labor Day parade in 1882, the park was a haven for drug addicts and prostitution in the 1960s. It has become a center for health food stores, yoga clinics, and other health and spiritual development enterprises which attract visitors from the entire city. Residents cite the 1976 founding of the Square's Greenmarket farmers market as the key to the change.