أَوْ لِإِظْهَارِ الْحِرْصِ فِي وُقُوعِهِ
Or to show intense eagerness for the event to occur.
A speaker may be so eager for an encounter or outcome that they phrase it in the past, as though it had taken place. The force is not a report of an accomplished event but an intense desire for its realization.
This overlaps with auspicious expression; however, tafāʾul highlights optimistic framing, while iẓhār al-ḥirṣ emphasizes the strength of desire. Context determines which nuance dominates.