If you are afraid of the death of the body, then you are afraid of absolutely nothing. That means you identify with the body, not the spirit. Then you are abiding already in death. The death of the body changes nothing, you are already in death and darkness. Yes, even the things that the world most admires is death itself.
Worldly intelligence is darkness and death.
Your whole life has been in thoughts of darkness and death. Until you receive Spiritual Life from the Truths given to us from Jesus. You are already in death. It does not matter who you have been in the world, a president, a movie star, or a rich person. These worldly occupations profit you nothing.