Poe uses symbols such as fire in a tripod and the color red to show the full emotion of death.
For example, a fire in a tripod represents life and death. "And the flames of the tripods expired" which means that his or her life has now ended. When you are born the flames will represent the beginning of a new life and when the flames fade away, they will represent a life that is fading away. When you are born the flames of the fires will rise up and they will keep continuing to burn until you have died. Often times people will use fire as a symbol as life and death.
Another example of symbolism Poe used was the color red. Some people