What exactly is this insight Jiddu Krishnamurti is speaking about?
This is simple and humble. Anybody trying to achieve enlightenment will probably hit a brick wall at this point.
Any idea of enlightenment will blind you from seeing life as it actually is (and that is the whole point).
I had no idea this had anything to do with enlightenment, I was just trying to understand my own life. By listening to Jiddu Krishnamurti and looking at my own life, I had insight into how my life actually is, which is nowhere close to what I thought it was. You need to see it with your own eyes to be willing to accept it.  
This is not magic, not divine, and definitely not from the outside in. Nobody can give it to you. Especially for money 😂.
You have to face your own fears, ideas, beliefs, attachments, etc. After facing your own life, with humility, you can see the truth to your own life.  We are nothing. But then, nothing means everything. Welcome to heaven.  
ONE love