Third Source: The existence and immortality of the spirit as a law and truth.

• THIRD SOURCE: Man’s spirit, which has been clothed in a living, conscious, luminous external existence, is a comprehensive and veracious commanding law disposed to acquiring universality. And even the weakest commanding laws manifest stability and permanence. For if it is considered carefully, it will be seen that present in all species which are subject to change, is a constant truth that, revolving within the changes, transformations, and stages of life, causes the outer forms of things to change, and living and not dying, is permanent.

Thus, while the human being is an individual, because of the comprehensiveness of his nature, his universal consciousness, and all-embracing imagination, he is like a species. A law that governs and is in force in the species is also in force in the human individual. Since the All-Glorious Creator has created man as a comprehensive mirror, for universal worship, and with an exalted nature, even if the spirit-truth which is present in each individual causes the individual’s outer form to change hundreds of thousands of times, with the Sustainer’s permission, it will not die but will continue, departing as it came. In which case, at Allah’s command and with His permission and through His making it permanent, the human individual’s spirit, which is the conscious element and living part of him, is immortal.

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Fourth Source: The constancy of laws despite the constant change in living beings; the immortality of the spirit as a law which is stronger than natural laws.