A yahrtzeit (“year time” in Yiddish) represents a significant date on the Hebrew calendar: the day when a soul left our world. Each yahrtzeit, the soul ascends to greater spiritual heights. We assist the soul on its journey by praying, learning, performing mitzvahs and reciting Kaddish in the merit of the departed. As with all Jewish days, this observance begins at nightfall and extends until the following nightfall.