"Most of the runestaves are constructed with acute or obtuse angle combinations, and there are very few right angles in the shapes. Obtuse angles are known to have a dynamizing effect on the mind, while right angles generally have the opposite effect. In the runic tradition obtuse or acute angles promote active, positive interaction between and among runes. Right angles create static, negative interaction or they can block the flow of runic force altogether. They actually cross it.

"When using angular aspects in castings, the runester must measure (at least approximately) the angle at which any two lots in question are juxtaposed. This is done by mentally drawing lines from the two lots through the center point of the cloth, then determining the angle at which they are juxtaposed. See example diagram. If the result is between 5° and 45°(clearly acute), or between 135° and 360° (clearly obtuse) they are read as bright staves. If they fall between 45° and 135° (an approximation of a 90° right angle) they are read as murk-staves. Exact measurements are unnecessary."