"Fyodor Pavlovich learned of his wife's death when he was drunk; it was said that he ran out into the street with his hands raised to heaven in joy, shouting : 'Lord, now lettest thou thy servant..' :* others say he wept convulsively like a child, so much so that, despite all the revulsion he aroused, he was pitiful to behold. Very probably, both accounts are true--that is, he rejoiced in his liberation and shed tears for his liberator at one and the same time. In most cases, people, even evil-doers, are much simpler and more naive than we generally suppose. And the same is true for you and me." Fyodor Dostoevsky, Brothers Karamazov.
Human behavior used to befuddle me, and I did overthink it.
I thought human behavior was very complex!
But recently I realized that people with complex motivations tend to be logical, as one needs to be logical to devise anything complex. Those were not the people who confused me the most as their behavior was very consistent with their ostensible principles as well as easy to understand to an outsider observer. When it was not easy, they were willing and able to explain their behavior.
The illogical people, mostly NFs who confused me the most. Recently I realized there is nothing complex to it, just vulgar people acting out on their ephemeral impulses and passions, and the thoughts behind them are crude and simplistic. Their behavior is exactly what it appears to be, no need to devote much thought to it.