Toldot Avraham Yitzhak is a splinter group of the ultraconservative and anti-Zionist Toldot Aharon. When the Temple in Jerusalem stood, a central observance of the Sukkot holiday was the pouring of water on the alter as a libation. The water was drawn from the spring of Shiloach and brought to the Temple through a special gate, accompanied by drums and dancing. Since the destruction of the Temple, it has become customary to gather on the holiday nights of Sukkot to sing and dance in memory of the Simchat Beit Hashoeva (Rejoicing in the Drawing of the Water).