When we traveled (I think it was in Idaho?) this photo brought back a song I had heard in my heart many years before.

This is the lyric I heard and finally wrote down in 2016
Rub me smooth
Rub me smooth
With Your living water
Rub me smooth
I am a sharp stone
Quarried from the earth
With Your Living Water
Rub me smooth
Allelu, Alluelu
by Your living water rub me smooth
I am a sharp stone
Quarried from the earth
by Your living water rub me smooth.
“Listen to me, you who pursue righteousness
Isaiah 51:1 NIV
and who seek the Lord:
Look to the rock from which you were cut
and to the quarry from which you were hewn;
When I studied this out here is some of what I found.

look unto the rock – The ancestors of the nation are compared to a quarry, the Israelites to the stones hewn from it,—a peculiar image found nowhere else
Cambridge Bible for schools and collegesA river rock is a natural stone that has been smoothed and shaped by the flow of water in a river. Abrasion is a process of continuing the smoothing of rocks by water and by other rocks, making them smooth and round.
https://howtofindrocks.com/what-makes-river-rocks-smooth-and-round/

Abrasion from the water reshapes the rock. What is harder than rock? At times my heart is! Yet that living water flows and shapes and corrects my rough edges until they resemble smooth stones.
For an enriching discussion about David and the five stones, etc. see https://graceintorah.net/2015/06/19/five-smooth-stones/#_ftn8
I challenge you to choose a stone and carry it in your pocket as a reminder of the Presence of God and the work of the Living Water in smoothing you. Yield to that life-giving work and show forth His glory in your life.