What does the last line of the Beacon of Luck spell mean?

Question

The beacon of luck spell has two effects.

Effect one is a +2 sacred bonus to saves, and effect two is the ability to roll twice for a save (before roll(s) are made). The last line says:

Once a creature benefits from the beacon of luck in this way, it cannot gain the benefit of this spell for 24 hours.

The spell doesn't say it's dismissed when used this way, so its full duration should still be in effect. Does it mean that only the roll effect cant be used multiple times (even with multiple castings), or is even the bonus to saving throws disabled?

Answer 1

The description of the spell beacon of luck says

You send out a burst of luck with a 30-foot radius centered around you. While the beacon of luck is in effect, you gain a +2 sacred bonus on all saving throws. As an immediate action before a saving throw is made, allies within the area can choose to benefit from this luck, rolling twice for a saving throw and taking the better result. Once a creature benefits from the beacon of luck in this way [i.e. by rolling twice], it cannot gain the benefit of this spell for 24 hours.

When the caster, due to the spell's effect, takes an immediate action to roll a saving throw twice, the caster doesn't stop benefiting from the spell: the spell doesn't end and the spell's entry of Duration 1 min./level continues normally. This means that, yes, after the reroll's used, the caster continues to receive the spell's benefit of a +2 sacred bonus on saving throws until the spell's duration expires.

However, once the reroll's been used and after the beacon spell's duration has expired, the caster can't receive "the benefit" of the next or later beacon of hope spell in the same 24-hour period (no matter who casts the beacon spell). Although the spell's description uses the singular benefit as if the spell had only one, Pathfinder frequently uses the word benefit to encompass the entirety of an effect. (For example, feats are listed as having a (singular) benefit no matter how many different effects the feat has.) With this in mind, this GM would rule that the spell's benefit includes both the saving throw reroll and the sacred bonus on saving throws.