To expand: the part of the ball that actually comes into contact with the lane is your track. Think of this as a bicycle tire. The "axle" of this tire is its axis. There are two ends of this axis; one on your Positive Axis Point (PAP) and one on the Negative Axis Point (NAP). The PAP is the point on the side facing you (ie, the side that you can see) as it goes downlane. It is used in providing layout coordinates for drilling.
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"To plunder, to slaughter, to steal, these things they misname empire; and where they make a wilderness, they call it peace." (Tacitus)
"If one tells the truth, one is sure sooner or later to be found out. " (Wilde)