एक एव महानात्मा सोऽहंकारोऽभिधीयते ।स जीवः सोऽन्तरात्मेति गीयते तत्त्वचिन्तकैः ॥
In plain words
The great Self alone is one; He is named the ego, celebrated as the individual soul, and described as the inner witness by those who contemplate ultimate truth.
Close to the Sanskrit
The great Self alone is one; He is designated as the ego, He is sung as the individual soul, He is described as the inner self by seekers of truth.