We talk a lot about the importance of good alignment, typically a square set up. But in the bunker, it’s a horse of a different color.
The sand propels the ball out and an open stance—where our body lines are left of a square set up—complements this effort. It allows the bounce of the club to do its job, which is slide through the sand with the ball going along for the ride.
A square stance will send the leading edge digging and the ball flying or worse, just a few feet in front of you.
Aiming at the target is not wise.
With an open stance, the out-to-in swing path will impart a left-to-right spin. So when the ball lands, it will roll right. Instead, aim more left of your target to allow for the effect of the spin. With this alignment strategy, your ball will land and should roll right toward the pin.