The Hebrew word for that happened is miqreh — on the surface it means chance or coincidence. But the ancient rabbis concluded there's no such thing as coincidence for the people of God. What looks random from the outside is divine arrangement from the inside.

Boaz tells Ruth she's found refuge under God's kanaf (wings) — the same word later used when Boaz spreads his own garment over her as protection. God's shelter, made visible in an ordinary man on an ordinary morning.