New Canaan’s Diane Nickelberg Barnett, a career real estate attorney who established her own practice in Queens, N.Y. 20 years ago, came to find meditation and yoga because her work was highly stressful and she sought balance. She started teaching meditation and yoga 10 years ago, in New York City, at RBS in Stamford and through private lessons. Then one year ago, Nickelberg Barnett thought about starting her own permanent meditation business near home, and began looking for a location. She found the perfect one. “This is for anyone who has a stressful life,” Nickelberg Barnett said on a recent morning from Grounded Meditation, a serene space located in “the tower” at Pryority Wellness, a holistic wellness center at 45 Grove St.