My good friend, Donna, invited me to join her at her Israeli dance class on a Wednesday night.    She has been dancing with this group for years, and she knows that I love both trying new things and dancing.  I marked my calendar for a Wednesday night and gladly joined her.   I could quickly tell that this was a wonderful group of individuals who knew each other not just as classmates or dancers but also as people.   They developed real friendships through their dancing. That feeling had a positive impact on the whole evening.   Since I was a newbie with the group (I had done some Israeli dancing…