“We have shown elsewhere that the “secret doctrine” does not concede immortality to all men alike. “They would never see the sun, if it were not of the nature of the sun”, said Plotinus. Only “through the highest purity and chastity we shall approach nearer to God, and receive in the contemplation of Him, the true knowledge and insight”, writes Porphyry.
If the human soul has neglected during its lifetime to receive its illumination from its Divine Spirit, our personal God, then it becomes difficult for the gross and sensual man to survive for a great length of time his physical death. No more than the misshapen monster can live long after its physical birth, can the soul, once that it has become too material, exists after its birth into the spiritual world.
The viability of the astral form is so feeble, that the particles cannot cohere firmly when once it is slipped out of the unyielding capsule of the external body. Its particles, gradually obeying the disorganizing attraction of universal space, finally fly asunder beyond the possibility of reaggregation.
Upon the occurrence of such a catastrophe the individual ceases to exist; his glorious Augoeides has left him. During the intermediary period between his bodily death and the disintegration of the astral form, the latter, bound by magnetic attraction to its ghastly corpse, prowls about, and sucks vitality from susceptible victims.
The man having shut out of himself every ray of the divine light, is lost in darkness, and, therefore, clings to the earth and the earthy. No astral soul, even that of a pure, good, and virtuous man, is immortal in the strictest sense; “from elements it was formed – to elements it must return.”
Only, while the soul of the wicked vanishes, and is absorbed without redemption, that of every other person, even moderately pure, simply changes its ethereal particles for still more ethereal ones; and while there remains in it a spark of the Divine, the individual man, or rather, his personal ego, cannot die.
“After death”, says Proclus, “the soul (the spirit) continueth to linger in the aerial body (astral form), till it is entirely purified from all angry and voluptuous passions…then doth it put off by a second dying the aerial body as it did the earthly one. Whereupon, the ancients say that there is a celestial body always joined with the soul, and which is immortal, luminous, and star-like.””
H. P. Blavatsky