The old 8-ball will roll Vikings' way in 2018

Numerology is the belief in a mystical relationship between a number and coinciding events. And I’m a believer in the mystical power of “Eight’’ when it comes to Minnesota’s NFL franchise.

The Vikings open a 58th season on Sunday vs. San Francisco in the Taj Ma Zygi. And the history with Eight assures us that it is going to be a landmark season — as in an important stage or turning point — for the Purple.

There have been five previous Seasons of Eight and all dramatic for varied reasons:

EIGHT WAS ENOUGH (1968): The Vikings went 8-5-1 in 1964, their fourth season, and outwardly there was a promising future for Norm Van Brocklin and Fran Tarkenton. Except, behind the scenes, the coach and the…