This document is meant to be a basic guide to planar concept and travel in
the Jaern setting.<br>
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<b>Definitions</b>
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<b>Adjacent</b> - When a point on one plane touches a point on another plane.
These two planes are adjacent to each other. Planes may touch at a single
point, a line, or they may overlap.
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<b>Disconnected</b> - When a plane has no adjacent planes, it is said to be
disconnected.
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<b>Other Port</b> - A creature ability that allows the creature to port, subject
to planar mapping and planar laws, to a plane adjacent to its home plane
while it is in its home plane, or back to its home plane while it is in a
plane adjacent to it. Creatures can find planes they can port to using
Planar Sensing.
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<b>Otherworld</b> - A rank 15 Dimensions spell that allows travel between planes.
It is not subject to the planar mapping rules nor does a plane need to be
adjacent to open a portal to it, though it is subject to the planar laws.
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<b>Overlapping</b> - When two adjacent planes touch at every point on each plane.
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<b>Plane</b> - A finite or infinite universe or dimension. The size of a plane is
variable and can range for the size of a penny to an infinite universe.
Each plane has a unique set of Planer Laws that the plane will uphold.
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<b>Planar Laws</b> - The physical and magical laws of a particular plane. These
laws could be set by a plane when it was created or they could have been
added by a powerful deity. These laws can alter how magic works, any
physical laws, and what things can enter a plane. Examples of Planar Laws
that can affect Planar Travel:
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  <li>No portals can be opened to and/or from this plane.
  <li>Only non-intelligent creatures can enter this plane.
  <li>Only invited creatures can enter this plane.
  <li>Creatures with a physical body are not allowed in this plane.
  <li>No deities are allowed in this plane.
</nl>
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<b>Planar Mapping</b> - The idea that a point on one plane corresponds to a point
on another plane in some fashion. Methods of planar mapping include:
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  <li>Direct Mapping - A single point on one plane directly corresponds
     to a single point on another plane. A simple equation would be
     involved to calculate this mapping function.
  <li>Random - There is no real mapping on this plane. The planar rules
     force a random transformation function when entering and/or leaving
     this plane.
  <li>Complex Mapping - This method involves a tricky transformation
     function that is beyond the scope of Jaernian mathematics. A single
     point will always correspond to a single point on the other plane,
     but beyond that it would just be guesswork.
  <li>Single Point - When entering a plane, you will always end up at a
     single point. This may be the only point you can leave the plane
     from.
</nl>
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<b>Planar Sensing</b> - This is a creature's ability to sense planes, that it can
port to, adjacent to its current point in its current plane. This acts as
a normal sense to any creature that has it.
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<b>Planar Travel</b> - Traveling between two planes through magical means or
through natural creature abilities.
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<b>Pocket Dimension</b> - A finite plane of a fixed size that is created either at a particular point within another plane or bound to an object. The pocket dimension is only adjacent to the plane/object that it is bound to. If the pocket dimensions binding is destroyed, through a revoke or other event, anything within the pocket dimension is safely forced out to the point at which the pocket dimension was bound. The more energy used to create/maintain a pocket dimension, the larger it can be. Be guided by spells such as Pocket.
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