Shadow Hoshana Rabbah

 Rema (OC 664.1) The early rabbis wrote that the shadow of the moon on Hoshana Rabba evening holds a sign for what will happen to a person and their family in that year. There is one who writes not to be concerned with this so as not to upset one's fortune and also because many do not understand this matter fully. It is better to be pious and not to investigate the future. This is how it seems to me