This summary provides the key points from the document in 3 sentences: The document discusses the Jewish tradition of mourning between the 17th of Tammuz and the 9th of Av, including diminishing simcha and focusing on losses to awaken sadness. It explains there are two modes of devekut (connection to God), one through constant awareness of God's goodness and one through acknowledging lacks and suffering to facilitate potent prayer. The meditation of Tisha B'Av is designed to break pride and make space for the soul of the Messiah.