Madhvaon Brahma Sūtra 2.4.11

The other breaths being instruments (organs) and the Chief not being an instrument (organ) (working at the pleasure of the limited soul), it is fit (to admit) that he is superior to all other breaths. The Mandavya Sruti also says this; “ All these now spoken of are indeed organs, but Prana is the one who is not an organ ; therefore he is the Chief, therefore he is the Chief; so (the seers) say.” “ All these indeed are the servants of the Chief (Prana),—Prana, Apana, Vyana, Udana, (and) Samana; therefore Prana, the Chief, shines the sole ruler. ” Thus the Kaundinya Sruti (declares the other breaths to be the servants of the Chief); and there is a reason shown in the Vayuprokta : “ As all, viz., Prana, Apana, and others, are perpetually the servants of the Chief, they are always under his command discharging their respective functions. On the other hand the Gaupavana . Sruti says: “ The five airs, Prana and others, are but the identi- cal forms of the Chief himself; and it is he that dwells day and night in five forms within the body of (all) creatures.” Hence the Sutrakara says :