How does death relate to nature?

We are threefold in nature—the divine principle of life called the spirit, then the refined spiritual form, consisting of subtle elements, the electrical body, and the gross outer physical system.

The purpose of the physical body is to be a basis for the development and growth of the inner life from babyhood to manhood—it is merely the husk to protect the real being while it is ripening for the spiritual kingdom, and the meaning of death is that the spiritual form has served its purpose and drops off, ushering the spiritual man into a spiritual world, opening his eyes to a world of realities, which surrounded him though unseen whilst living the earthly life. Death then is a simple transition, taking place in the order of Nature in analogy with what we see taking place in the lower forms of organic life, such as the dropping of the husk from the ripened fruit, the liberation of the beautiful butterfly from its chrysalis form.

Physical dissolution is a natural event in the economy of existence, the throwing off of the outer covering to set the spirit free to enter its own proper realm.

The Encyclopaedia of Death and Life in the Spirit World—Opinions and Experiences from Eminent Sources