Pesukei D’Zimrah-Adar Joy-Likkutei Eitzot

Through song and joy, one can “pour out his words like water in the presence of the Lord (Lamentations 2:19).” Therefore, by being happy throughout the entire day, one should be able to pray in solitude properly. (Likkutei Eiztot, Simcha #15)

“Open wide your mouth and I will fill it (Conclusion of Hodu).” We open our mouths with joy so that God will fill our mouths and we can, “Pour out our words like water in the presence of the Lord.”