So much so...
So much so, that history and excavations of ancient graveyards show and archeological studies like the pyramids of Egypt and other communities and nations, which have come down to us that most people of the past had belief in perpetuity of soul and life after death. Therefore they buried their dead with their personal effects, belongings and things, which they might need; continued to perform rituals to honor the dead for a long period of time and sending offerings and charities on their behalf.
Regarding this, Will Durant says: Since Sumerians (524 B.C.) buried with their dead, provisions and objects of their use, we can conclude that they had belief in life after death.[^1] He also writes: The body, Egyptians believed, was inhabited by a small replica of itself called the ‘ka’, and also by a soul that dwelt in the body like a bird flitting among trees.
All of these: body, ka and soul – survived the appearance of death; they could escape mortality for a time in proportion as the flesh was preserved from decay; but if they came to Osiris clean of all sin they would be permitted to live forever in the “Happy Field of Food” – those heavenly gardens where there would always be abundance and security.[^2] Then he writes: The Mycenaean himself, as well as most of his art, is found in the tombs; for he folded and buried his dead in uncomfortable jars, and seldom cremated them as the Heroic Age would do.
Apparently he believed in a future life, for many objects of use and value were placed in the graves.[^3] He further writes: According to Egyptian belief, these Elysian Fields, however, could be reached only through the services of a ferryman, an Egyptian prototype of Charon; and this old gentleman would receive into his boat only such men and women as had done no evil in their lives.
Or Osiris would question the dead, weighing each candidate’s heart in the scale against a feather to test his truthfulness.
Those who failed in this final examination would be condemned to lie forever in their tombs, hungering and thirsting, fed upon by hideous crocodiles, and never coming forth to see the sun.[^4] From what is stated above and from hundreds of other examples, we can conclude that belief in life after death is an ancient phenomenon present in the innate nature of man, in such a way that the ancient man even through his simple understanding was able to obtain and have faith in it.