in this insular world of the Haredi ( Ultra Orthodox Jews) ; strictly traditional and gender segregated, only the bride is allowed to enter the hall where men are celebrating her marriage. Veiled she walks holding the gartel ( a white ribbon to avoid touching) for the special dance with the grand rabbi, (the Admor of a great Hassidic dynasty of Nadvorna ) this dance is called Mitzva Tanz - the other end of the gartel is held by those who are designated to dance with the bride .