The better I become at listening, the more I realize how my mind says crazy things constantly. Most of what it says is crazy. And if I believe them, I become crazy too. Things like: I should exercise more in the morning; I should have more time; I need more money; I should probably save more.
The world would agree with me in saying that those things are true. But they are not. Truth is something that is in accordance with reality. How is it true that I should have more time than I already do? How is it true that I need more money than what I already have, or that I should save more? They are just not true. As a society, we're just used to believing they are true. But when we look at them more closely, we can see that they're not. They are not in accordance with reality. We just believe they are. And that's what causing us suffering: believing something that is not in accordance to reality. Another way of saying it is: feeling certain about something that isn't really true.
It's no wonder why we feel stressed and make choices that have the opposite effect of what we say we want: we are holding a magnet to our compass and letting that point us north.