American Indians ancestors ancient animals appear ascribed associated assume become believed bird blood body called cause ceremonies certain character civilized closely common conception connected course cult culture customs dances dangerous dead death demons departed developed disease divine effects especially essentially evidently evil spirits exist explained fact Father fetish frequently give gods Greeks hand head higher human ideas important Indians influence instance interesting Jibaros kind later living looked lower magical material means medicine-man mentioned mysterious natives natural objects offerings origin particular performed person plants possess practices prayer present priest primitive purely question reference regarded relation religion religious rites river sacred sacrifices savage seems seen sense shaman sickness similar sometimes sorcerer soul South America stage statements stone supernatural supposed taboo taken theory things thought totemism tree tribes whole women worship