When this ascetic, set out on steadfastness in knowledge, fully draws in, as a tortoise draws in its limbs from every side out of fear, draws in the senses from the sense-objects, from all objects: of him the insight is well established. This sentence states a meaning already given. Now, for one who does not feed his senses on objects, even for the sick man, the senses are drawn in like the tortoise's limbs, but not the passion toward objects. How is that drawn in? He says.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.