Why did faith in the soul arise? Why do scientists find tools, jewelry, dishes and weapons during excavation of ancient graves?

Because sleep and death were explained by supernatural power – the movement of the soul, which leaves a person during sleep or death.
Because at the burial of ancient people, tools, jewelry, dishes and weapons were placed in the grave, thinking that they would help them in another world.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.