Tumi

Using a tumi, he would open the animal's belly and, with his hands, pull out its bowels, so that observing those elements he could foretell the future.

Thanks to archaeological research, it is known that Andean cultures such as the Paracas or Inca have used tumis for the neurological procedure of skull trepanation.

Many of these operations were carefully performed, suggesting that the surgery was done for the relief of some body disturbance other than that associated with injury, perhaps an organic or mental condition.

The legend goes, that when Ñaylamp died, or disappeared, after founding the Lambayeque culture, he grew wings and flew into the sky.

[7] This hero-king founder of Lambayeque built a temple named Chot where he placed a large stone that he called Llampallec, which means statue of Ñaylamp.

The mythic stories about the bird named Ñaylamp and the hero warrior founder of Lambayeque are represented in the knife or Tumi of Illimo by a birdman.