"Reasons" as stated and believed are seldom true, and their seniority is illusory. Rather, intentions and events, in their order, precede the reasons perceived and give them birth, The most common order is intention, event, reason, but it may also be sometimes event, intention, reason. Be aware also that the operative intention may not be apparent even to its originator, on this side of reality. On this side he may not be aware of his actual intention, which, of course, originates on the other side.
You may ask how an event can precede the reason and this brings into question the nature of reasons: more instructive is the question of how the event can precede the intention, which brings into question the nature of time, and once more of reality. But the latter question could only be posed from a this-side viewpoint which is, of course, very restricted.