You don&#x27;t have to travel back in time, as the article suggests, to find societies where the dead are accorded a physical presence among the living. There are still several tribes in Africa and New Guinea which maintain generations of mummified ancestors at sacred sites, transporting them back to their villages to &quot;participate&quot; in ceremonies and festivals. See for example <a href="http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;25998636" rel="nofollow">http:&#x2F;&#x2F;www.ncbi.nlm.nih.gov&#x2F;pubmed&#x2F;25998636</a>