Acceptance means no complaining, and happiness means no complaining about the things over which you can do nothing.
See the Light in Others, and Treat Them as if That is All you See.
In the East, they contemplate the forest; in the West, they count the trees.
...this moment... is the only physical reality you have.
Try viewing everyone who comes into your life as a teacher.
The most important thing people can do is refuse to have any resistance to staying connected to their source. People resist being able to attract abundance into their lives.