15. Thus all the intelligent beings of the creation assist in carrying on the general work of the universe, whatever the degree of development at which they have arrived, and each of them according to its possibilities; some of them in the state of incarnation, others in the spirit-state. There is activity everywhere; from the bottom of the ladder to the top, all are learning, aiding one another, mutually supporting each other, and holding out a helping hand to assist each other in reaching the summit.
Solidarity is thus established between the spirit-world and the corporeal world, in other words, between spirits and human beings, between spirits in freedom and spirits in the captivity of the flesh. And thus, too, all true sympathies, all pure and sincere affections are perpetuated, strengthened, and ennobled, through the purification and continuation of the affectionate relationships of spirits.
Life and movement exist everywhere in the Universe. There is no corner in the infinite where someone does not exist; no region that is not constantly traveled by innumerable legions of radiant invisible souls, who are unseen by our coarse senses, but quite visible to those souls who are liberated from the influence of the physical body, and whose sight marvels with overflowing happiness. Everywhere, throughout the universe, there is happiness proportioned to the degree of progress achieved, to the greatness of the tasks accomplished; for each spirit carries within itself the elements of its happiness, according to the category in which it is placed by its degree of advancement.
The happiness of spirits depending on their own personal qualities and not on any physical surroundings, it exists wherever there are spirits who are capable of being happy; but there is not, throughout the universe, any fixed and circumscribed region of happiness. Wherever they may be, the pure spirits are always able to contemplate the Divine Majesty, because God is everywhere.