Track Down the Thoughts

People always think so many different things in one day.

Thinking is like a non-stopping current flowing in our mind. We are almost always thinking about something. However, often we don't recognize what we were thinking. May be we had a very bad through for few seconds, but in the next moment, another topic were raised in the current and forget what we thought just before. Thoughts are changing so rapidly that we usually don't remember all of its contents.

But what happens when we don't remind them and let those bad thoughts go?
If we don't correct those bad thoughts, then I'm sure, we don't mature at all. It's so difficult to track down thoughts every second, but we need to catch them anytime when we are awake.
It's because your thoughts is exactly the world you live in.