Focusing on the fast of the Seventeenth (17) of Tamuz and discusses the general inyan of Taaneisim; specifically, the four fast days memorializing different tragedies associated with the Churban Habayis. 

• Were these fast days instituted to elicit Teshuva, or were they primarily intended to mark days of Aveilus?
• Should children who are not fasting refrain from extra indulgences on these days?
• Do these fast days commemorate tragedies specific to Churban Bayis Rishon, or do they include Churban Bayis Sheini too?