It is necessary to know how to meditate. Through meditation we establish serenity, a quiet mind, and energetic stability, all of which affect astral projection.
It is also necessary to conserve emotional energy. If we waste emotional energy through the day, we will be unable to be awake in the astral world, which is related to the emotional center.
“Nothing is easier than self-deceit. For what each man wishes, that he also believes.” —Demosthenes
"Do not worry; cultivate the habit of being happy." —Samael Aun Weor