ज्ञानविज्ञानतृप्तात्मा कूटस्थो विजितेन्द्रियः | युक्त इत्युच्यते योगी समलोष्टाश्मकाञ्चनः
jñānavijñānatṛptātmā kūṭastho vijitendriyaḥ . yukta ityucyate yogī samaloṣṭāśmakāñcanaḥ
心意满足于知识和实证智慧，坚定不移，感官受控者，被称为与自我相应。这样的瑜伽士视土块、石头和黄金为等同。
One whose mind is satisfied with knowledge and realization, who is unmoved, who has his organs under control, is sadi to be Self-absorbed. The yogi treats eally a lump of earth, a stone and gold.
“知识”（Jnana）是指通过研读经典获得的理论知识；“实证智慧”（Vijnana）是指通过自我实证（灵性体验或Anubhava）获得的对自我的直接知识。 “库塔斯塔”（Kutastha）意为坚定不移，如同铁砧。各种铁块在铁砧上被锤打成形，而铁砧本身却保持不变。同样，瑜伽士在接触感官对象时，也保持不动摇、不变或不受影响。因此他被称为库塔斯塔。库塔斯塔也是梵（Brahman）的另一个名字，意指心意的寂静见证者。
Jnana is ParokshaJnana or theoretical knowledge from the study of the scriptures. Vijnana is Visesha Jnana or Aparoksha Jnana? i.e.? direct knowledge of the Self through Selfrealisation (spiritual experience or Anubhava).Kutastha means changeless like the anvil. Various kinds of iron pieces are hammered and shaped on the anvil? but the anvil remains unchanged. Even so the Yogi remains unshaken or unchanged or unaffected though he comes in contact with the senseobjects. So he is called Kutastha. Kutastha is another name of Brahman? the silent witness of the mind. (Cf.V.18VI.18)