From the earth to the stars, the whole universe obeys the law of hierarchy. This means that the coarsest and heaviest elements accumulate below, whereas the lightest and purest elements tend to rise. This is a physical law which is also found in the psychic realm.
Disciples who understand this law strive to climb very high through meditation, contemplation and prayer in order to capture the subtlest particles of matter with which to build their spiritual bodies. And as these materials are linked to energies, to entities, the purer they are, the more vibrant and radiant the energies and entities attached to them. Thus, by replacing the old particles of their body with new ones, disciples also open the door of their soul to more visitors, who will bring them the most beautiful presents.
Omraam Mikhael Aivanhov Daily Meditations