We cannot study everything at the same time.

Enlightenment is eliminating mental confusion, eliminating hatred, jealousy, mental toxins, cravings. That's very simple and straightforward. Whether you can do it or not is another matter.

If there is a remedy or a cure, a solution to a problem or difficulty, why worry?

By happiness I mean here a deep sense of flourishing that arises from an exceptionally healthy mind. This is not a mere pleasurable feeling, a fleeting emotion, or a mood, but an optimal state of being. Happiness is also a way of interpreting the world, since while it may be difficult to change the world, it is always possible to change the way we look at it.

If you don't have altruism, inner strength, inner peace, attention, then it's a trauma. It makes a difficult life for you and for others.

Happiness is a state of inner fulfillment.

For a few moments, be aware of your potential for change. Whatever your present situation is, evolution and transformation are always possible. At the least, you can change your way of seeing things and then, gradually, your way of being as well.