Musar su Salmi 149:2

For this is the true joy, namely, that a person's heart delight that he merits to serve before the blessed Master, of whom there is none like Him, and to toil in His Torah and His mitzvot which are the true perfection and the eternal worth. And Shlomo said in a parable on wisdom: "Draw me, we will run after You. The King has brought me into His chambers; we will be glad and rejoice in You" (Shir HaShirim 1:4). For the further a person merits to enter into the inner chambers of knowledge of His blessed greatness, the more his joy will increase and his heart will sing within him. And scripture states: "Israel will rejoice in its Maker; the children of Zion will exult in their King" (Tehilim 149:2).

And David when he had already reached this level a great measure said: "May my words be pleasing to Him; I shall rejoice in G-d" (Tehilim 104:34), and "I will come to the altar of God, to God my exceeding joy, and I will thank You with a lyre, O G-d, My G-d" (Tehilim 43:4). And he said: "My lips sing praises, when I sing to You, and my soul which You have redeemed" (Tehilim 71:23).

May the blessed G-d, in His mercy, open our eyes in His Torah, teach us His ways, guide us in His paths, so that we may merit to give honor to His Name and bring gratification to Him. "The glory of G-d will be forever; G-d will rejoice with His works" (Tehilim 104:21), "Israel will rejoice with its Maker; the children of Zion will exult with their King" (Tehilim 149:2), amen, amen, amen!