The Spirits' Book
Book Three - Moral Laws
Chapter VI - V. Law of Destruction
Necessary versus Abusive Destruction
730. Since death leads to a better life, delivers us from the difficulties and suffering of our present existence, and we should anticipate it rather than fear it, why do human beings have an instinctive fear of death?
“We have said that humans should try to prolong their lives to accomplish their tasks. This is why God has given them the instinct of self-preservation. This instinct sustains them through all their trials, without which they would often succumb to discouragement. The inner voice telling them to prevent death also tells them that they may still do more for their advancement. Every danger that threatens them is a warning to profit from the relief God grants them. As humans are ingrates, they are more likely to thank their stars than their Creator.”