A "scientific" mind will tell you as human kind developed, they "created" these myths to explain their surroundings and comfort their fears.
( "It's 32,000 years ago, a small band of hunters enter the mouth of a deep cave. Down into the earth they travel, lead by a single torch carried by the group's wise one. After passing through narrow passages, under low ceilings...they come to an open chamber. There, the rest take seats as the wise one places the base of the torch into a hole in center of chamber. Carefully the wise one reaches into the pouch she had brought. Pulling out a piece of red ochre, a hollow bird's bone, and other odd sticks and "tools". One of the other hunters stands, holding a stone bowl over the torch flame. This contains the fat from a bison, the very animal they now hunt. Once softened, the hunter places the bowl before the wise one. On a rock that lays on the floor of the chamber, the wise one has ground the ochre into powder. Dipping a finger into the softened fat, then to the powder, a paint is made. The wise one uses this to mark her face. Then, one by one each member of the band is marked. Once again, they seat themselves, in audience. The wise one places the bird bone to her lips, drawing some powder into it. She places her hand on the wall of the chamber, and blows the powder over it. When she removes her hand, an outline is left. Over & over, several times this is done. As this is done, the hunters symbolize each hand print, by placing their hands in same positions in the air before them. A low murmuring is starting to emanate from their throats.... The wise one picks up a stick, placing it in the fat then mixing with powder. The voices behind her grow louder, all are in a trance... She traces a Bison on the wall, louder still, a "hunter", even louder, Then, one by one she draws spears piercing the Bison. One spear, all at once the hunters slap the floor of the chamber with their hands. Whack....Another spear....WHack..and yet a third...WHACK. All is quiet.....")