What should you know?

There are thousands of forces or laws in Nature, of which we know nothing, and yet of which it is necessary that we should know before we can fully understand spiritual life or even physical life in all its phases. For instance, why do some spirits at death depart immediately while others linger behind sometimes for days and months and even years? Then again—

Why do the departed spirits of some whom you have never known in life come and reside with you while perhaps your own departed loved ones may take their immediate departure?

There are laws and reasons for these things, and these laws and reasons are known to spiritual entities of the spiritual worlds—and many of these laws can be made known to us.