I calmed and quieted my soul

Psalm 131 (ESV): I Have Calmed and Quieted My Soul. A Song of Ascents. Of David.
O Lord, my heart is not lifted up; my eyes are not raised too high;
I do not occupy myself with things too great and too marvelous for me.
But I have calmed and quieted my soul, like a weaned child with its mother; like a weaned child is my soul within me.
O Israel, hope in the Lord from this time forth and forevermore.