Coexist with another effect or modifier in the same area or on the same target. For example, bonuses that do not stack with each other overlap instead, such that only the largest bonus provides its benefit. Spell effects of opposite types often suppress one another’s effect when their areas overlap. For example, light and darkness spells of the same spell level suppress one another’s effects in any overlapping area, leaving only the otherwise prevailing light conditions in effect. Also, spells providing resistance to or protection from the same category of damage as another such spell overlap rather than stacking. That is, damage of the specified type applies to each spell separately, such that only the most beneficial spell provides its benefit unless and until it ends.