Driving down the highway, you could easily tell where the creeks were because you would see that curving line of trees.
I'm thinking about those trees and the trees I see now when I read how Psalm 1 describes the benefit of God's instruction. "They are like trees planted by streams of water, which yield their fruit in its season, and their leaves do not wither. In all that they do, they prosper."
Like water for trees, God's law protects and enriches us.