Tractate Moed Katan deals mainly with the halakhot pertaining to the intermediate days of the Festival, which are often referred to as simply: The Festivals, in rabbinic literature. The discussion of these halakhot leads to a comprehensive treatment of two other fundamental areas of halakha: The halakhot of mourning and the halakhot of ostracism. Tractate Hagiga deals with the halakhot of the mitzva to ascend and appear in the Temple on the three pilgrimage Festivals. The analysis of these halakhot can be divided into two main categories: The off erings which the pilgrims must bring, and ritual purity and impurity, especially those aspects which are relevant to the Festivals.