The fifteenth mansion is Arcturus, its deity is Vayu the wind, and its symbol is a single shoot of grass bending without breaking.

Its lord is Rahu. Swati means 'independent', and that is the whole reading: self-direction, flexibility, trade, and a strong dislike of being held. Arcturus is the fourth-brightest star in the sky and sits well north of the ecliptic, so unlike most of these the Moon never covers it.