Futhorc
Sigel is the sun, and the Old English poem gives it to one group only: seamen, for whom it is always a hope while they cross the fish's bath, until the sea-steed brings them to land. That last clause sets the terms of the week. You are in the middle of a crossing, with the old coast behind you and the new one not yet visible, and what you have is a single reliable reference. Use it. Check your heading against it once a day rather than every hour, because constant correction is how a ship ends up zigzagging. Whatever later books say, this is not a victory rune; sigel means the sun and has nothing to do with triumph. It offers a bearing, not an arrival. Keep the course steady and let landfall come when it comes.