How to think deeply and penetrate into its core? I want to quote my experience as - "True Understanding brings effortless transformation". In my experience I have found that whenever I understand something deeply (ohhh! Moment) it transforms that part of my behavior and thinking completely. If I don't understand something I am in a constant state of confusion and suffering. So my question is how I can penetrate deep into any topic to understand it profoundly? Does Buddha share any such techniques to sharpen my thinking abilities?
How to think deeply and penetrate its core? How to think critically? Or how to gain insight?

Regardless a good place to start is to attempt to know something by understanding its binary opposite. You think you know what something is? Every detail of what it is? U memorized it? Backwards and forwards? Now do the same for understanding what it is not. Every detail of what it is not. Or what is there in its absence. Or what is absent in its presence and absence. And what about a non-binary opposite?? Write it all down. Memorize it. until you can repeat it backwards.

Take this example:
You are a man and you want to be popular with women so you learn as much as you can. You worship them you pray fr them you protect them you do everything you can but still they dont notice you.

But you only started learning about women with learning about women. Did you learn about men too? Should you? Are they the same? What are the differences anyways? Genetics?
Ok so youre a man and you know eveyrthing about men.
Do you know about trans women? Trans men? Nonbinary afabs? Binary amab transsexuals?

Maybe youll never know about women. So do give up or do you continue to train in true understanding? Better to be a monk then?