The first thing the exercise impresario Taryn Toomey did after she leased the third floor of 22 Park Place, a former construction office, last November, was to pour concrete over the scuffed floorboards and scatter hundreds of bits of smashed crystals on top. Black onyx, hematite, and black tourmaline, to “draw energy out,” and transparent quartz, rose quartz, and amethyst, for “clearing, love, and processing.” Then she covered them up with new oak planks. “I so strongly believe in the power of intention,” she said, tugging at the sleeves of her black bodysuit. “Whether or not it works, it’s there.”
One morning last month, forty of Toomey’s acolytes flocked to the studio for its inaugural edition of the Class, a yoga-cardio-strength workout that Toomey, who is thirty-eight, began offering in…
