At 30 years old, Sister Danielle Gonzalez is the youngest of 19 nuns at the community of Mary Help of Christians Academy in North Haledon. No lightning-bolt moment brought Danielle Gonzalez to the convent at St. Joseph's Provincial Center, just a gentle and consistent call that only she could hear. Gonzalez, 30, who grew up in Pequannock, was a senior at the College of New Jersey who enjoyed wearing Jones New York suits by day and dancing at clubs with friends by night. She earned a black belt in karate before the idea of becoming a nun ever entered...