I am preparing for a trip to Eastern Europe soon. We will be visiting Vilnius (Vilna), Dzisna, Minsk, Vitebsk, then Warsaw (for Tishha BeAv).  This will be first time and I admit to being nervous about it. Material for future writing there will certainly be, but will my nervous system survive the challenge of walking the ground my parents walked and seeing the places I have heard so much about…