Being close to God and spending time in His presence represents the peak of human and spiritual happiness. This profound connection bridges the daily service of the present with the great hopes of the future. Historically, this joy was experienced by the Priests and Levites who physically lived and served in the Temple during the time it stood [אבן עזרא, רד״ק]. On a personal and spiritual level, this concept inspired the early pious individuals who would sit and wait in the house of God for a full hour before their prayers, using the quiet time to properly prepare their hearts [תורה תמימה]. However, the primary approach among commentators is that this vision is directed toward the future. True happiness belongs to the person who will merit to live in the rebuilt Temple, dwell within its walls, and achieve the immense spiritual heights of that holy place [רש״י, רד״ק, מצודת דוד, מאירי, אלשיך].
The nature of this ongoing praise is understood in two complementary ways. Some view it as a promise of constant, eternal devotion, where praise to God continues endlessly [ביאור שטיינזלץ], lasting throughout a person's entire life [רד״ק], and remaining forever without the pain and interruption of exile [מאירי]. Alternatively, other commentators see this as a prayer for renewal and return. In this view, the ultimate joy is the hope that God will once again be praised in a rebuilt Temple, exactly as He was in ancient days [מלבי״ם, רש״י].
Because this ongoing praise is framed as a future event rather than a past occurrence, it carries a deeper implication. The ancient sages find here a clear hint to the resurrection of the dead. There is a divine guarantee that those who dedicate themselves to sitting in God's house in this current world will earn the merit to return and praise Him in the future, both in body and soul [תורה תמימה, אלשיך].