Sowelo is the letter S
Anglo-Saxon Rune Poem (from ragweedforge.com)
The sun is ever a joy in the hopes of seafarers
when they journey away over the fishes’ bath,until the courser of the deep bears them to land
After the days of ice and stone, today Sowelo comes shining out, warming, radiant, and bright. Energy is present, and good fortune and favors to be had. Events happen with ease and grace, and desires are fulfilled with little difficulty. It’s a shining, joyous and peaceful day.