The ego puts upon himself his garment of flesh and goes forth into the school of the physical world to learn certain lessons.

He learns them, or does not learn them, or partially learns them, as the case may be, during his schoolday of earth-life; then he lays aside the vesture of the flesh and returns home to his own level for rest and refreshment.

In the morning of each new life he takes up again his lesson at the point where he left it the night before.

Some lessons he may be able to learn in one day, while others may take him many days.
If he is an apt pupil and learns quickly what is needed, if he obtains an intelligent grasp of the rules of the school, and takes the trouble to adapt his conduct to them, his school-life is comparatively short, and when it is over he goes forth fully equipped into the real life of the higher worlds for which all this is only a preparation.

Other egos are duller boys who do not learn so quickly; some of them do not understand the rules of the school, and through that ignorance are constantly breaking them; others are wayward, and even when they see the rules they cannot at once bring themselves to act in harmony with them.