बाह्यानुसन्धिः परिवर्धयेत्फलंदुर्वासनामेव ततस्ततोऽधिकाम् ।ज्ञात्वा विवेकैः परिहृत्य बाह्यंस्वात्मानुसन्धिं विदधीत नित्यम् ॥ ३३५ ॥
In plain words
Chase after external things, and all you grow is harmful tendency, thicker with every chase. See this clearly through discernment, let the external go, and turn instead, again and again, to inquiring into your own true Self.
Close to the Sanskrit
Pursuit of the external increases, as its result, precisely harmful latent tendency, more and more. Knowing this through discrimination, and abandoning the external, one should constantly practice inquiry into one's own Self.