Seven is a sacred number in Jewish liturgy. It appears 735 times in the Old Testament and repeatedly in various rituals, including wedding ceremonies where the bride circles the groom seven times as the sheva bruchas are chanted. So why, on our seventh trip to Israel, didn't my husband and I run to the kotel and immediately immerse ourselves in spirituality and, like other Jewish pilgrims from around the world, push handwritten prayers between the cracks of the bricks?