1. Rebbi Yehoshua ben Levi tried to perform a ritual meant to kill an apostate who was bothering him, but he fell asleep.
2. Rebbi Yosi: Moshe requested three things from Hashem. All were granted.
3. The Gemara gives a general rule about people who generally have good or bad things happen to them.
4. Having a wicked son in one's home is worse than the war of Gog and Magog.
5. The Gemara extols the virtue of having a set place for one's prayers (some say one's learning).
A BIT MORE
1. This strange occurrence made him realize that it was inappropriate to perform a ritual whose purpose was to cause someone's death. This is as the verse states, "And also a punishment done by the righteous is not good" and "And His mercy is on all of His creations."
2. They were: that Hashem make His Shechinah rest on Bnei Yisrael, that the Shechinah not rest on the Nochrim, and that Hashem show Moshe His ways.
3. If a person is righteous and good things happen to him, he is a completely righteous person. If he is wicked and good things happen to him, he is probably not completely wicked. If he is righteous and bad things happen to him, he is probably not completely righteous.
4. This is evident from the fact that David ha'Melech lamented in a stronger manner about Avshalom than he did about the war of Gog and Magog.
5. The Gemara says that his enemies will fall before him. The Gemara earlier (6b) stated that the G-d of Avraham will help him, and he will be eulogized as a humble and pious student of Avraham Avinu.