Related su Neemia 8:78

1. If it is permitted to fast on Rosh HaShana, and in it is 3 paragraphs. One eats, drinks and is merry [on Rosh Hashanah.] We do not fast, whether on Rosh Hashanah, nor on Shabbos Shuva (the Shabbos of Repentance which is between R'H and Yom Kippur). However, people should not eat to complete satiation, so that they do not reach light-headedness, and that the fear of God should remain on them.