Goal of Concentration 1-4. Yoga is the concentration which the fluctuations. Freed from them, the Self attains to self-expression. i. 1Now the exposition of yoga {is to be made}. i.2 Yoga is the restriction of the fluctuation of mind-stuff. i.3 Then the Seer {that is, the Self} abides in himself. i. 4 At other times it {the Self} takes the same form as the fluctuations [of mind-stuff]