We need to understand that selfish attachment will sooner or later create problems. If you are attached to your own needs and desires, if you like to be happy and don't like to suffer, when something minor goes wrong it will seem gigantic. You will focus on it morning to night, exacerbating the problem. A crack in a teacup will begin to seem like the Grand Canyon after examination under the microscope of your constant attention. This self-focusing is itself a kind of meditation.
Meditation means bringing something back to the mind again and again.
If we repeat virtuous thoughts and rest in mind's nature, this can lead to enlightenment. But self-important meditation will only produce endless suffering. Focusing on our problems may even result in suicide, because we can become so preoccupied with our suffering that life seems unbearable and without purpose. Suicide is the worst of solutions because such extreme attachment to death and aversion to human life can close the door to future human rebirth. Though others seek happiness, they may not understand how to go about accomplishing it, whereas if we have some understanding of the spiritual path, we can perhaps help and support them in their efforts.