ציטאַט אויף במדבר 11:5

And with this all the verses mentioned before will be explained. Behold, what Yisrael said "we remember the fish" were their thoughts of sexual impropriety, since the word דגה dagah is a hint to fish, that hint and multiply. When the tzadik hears any speech, the tzadik is able to grasp and comprehend the root of a person's thoughts by their speech. And this is "Moshe heard etc were weeping divided in their families" - meaning, he understood the thought in their hearts as they were saying "we remember the fish". And since Moshe prayed for Yisrael all the time, and on that time also, and it turns out that the angels also understood his prayer, as explained above, and the Accuser began accusing through those thoughts that Moshe understood, and accused Yisrael because of the sexual improprieties. This is why "God's anger flared": if it weren't for the Accuser, they would not be punished regarding thoughts, since 'evil thoughts are not considered deeds by the Creator' (Kiddushin 39b). And according to what we said, the reason is that the angels do not understand thoughts, and there is no accuser regarding thoughts, but at that moment their understood due to Moshe, and therefore began accusing Yisrael, "and God's anger flared, etc, and it was bad in the eyes of Moshe" because he understood that he was the cause of it. And what did Moshe do? He began praying from "and Moshe said etc" until "the land that You swore to their fathers" - meaning, his intent was to remind the merit of the ancestors. And when Moshe said "from where will I get meat" his intention was to skirt completely the issue, saying that the problem was not sexual impropriety at all, but just meat, and so to silence the accuser.