Livets Bog, vol. 4
That which is "living" can never become anything other than "living", just as that which is "dead" can never become anything other than that which is "dead". Why the living being believes that the replacement of its physical body constitutes "death"
1438. But a life that constitutes only "matter" is not "life" at all; it is "death". And no other "death" exists in the universe or cosmos. That which is "living" cannot be anything other than "living". "Life" can never "die", just as absolute "death" can never become "life". The living beings, thanks to their structure being the "triune principle", can never be anything but "eternal" and thus "immortal". That the physical body is replaced when it becomes worn out or unfit for use cannot possibly mean "death" but a furtherance of "life". If a mutilated instrument, when unfit for use, is not replaced by the emergence of a new body or instrument, the function that is maintained by the instrument in question cannot possibly continue, but would come to a standstill with the destruction of the instrument or body. And if the being's physical body, as well as all the other five bodies that form its subconsciousness, could not be replaced by new, fresh bodies as they became unusable, old or worn out, the living being would really stop being "alive", because its entire sensory faculty would thereby completely cease to exist. The fact that such bodies are replaced has nothing to do with real "death". But since the terrestrial human being still cannot in an awake day-conscious way see this replacement of the physical body, but sees only the breakdown of the old body and the temporary cessation of the ability of the being in question to manifest itself on the physical plane, it believes that this being is "dead", which means, is dissolved into the great "void" like every material phenomenon that perishes.