THIRD POSITION OF MASTERY

27. ‘When a man without the subjective idea of form sees externally forms which are finite, and pleasant or unpleasant to the sight, and having mastered them, is conscious that he knows and sees–this is the third position of mastery.

Buddhist Suttas – MAHÂ-PARINIBBÂNA-SUTTANTA 
Translated from Pâli by T. W. Rhys Davids [1881]
http://www.sacred-texts.com/bud/sbe11/sbe1103.htm