To observe and watch one's own mind is something really interesting. The untrained mind will run and follow its old habit patterns. Because it has not been trained and taught, it will get lost in all kinds of stories and issues. Therefore we have to train our mind. The meditation practice in Buddhism is all about training one's own mind.
The nature of Buddhism, as I understand it, is to believe that we are all pure and radiant at our core. And yet we see around us so much evidence that people are not acting from a place of purity and radiance.
Buddhism ... is not a culture but a critique of culture, an enduring nonviolent revolution or "loyal opposition" to the culture in which it is involved.