All objects that the mind apprehends through the senses can be withdrawn into the mind; the mind can be withdrawn into the understanding; the Understanding can be withdrawn into the Soul, and the Soul into the Supreme.
मनस्याकृतयो मग्ना मनस्त्वभिगतं मतिम्। मतिस्त्वभिगता ज्ञानं ज्ञानं चाभिगतं परम्॥