Before revision: The sage of the Maitri Upanishad (VI.30) explains:- स हि सर्वकाममयः पुरुषोऽध्यवसायसङ्कल्पाभिमानलिङ्गो बद्धः | अतस्तद्विपरीतो मुक्तः || " The purusha full of kama or desire is bound having adhyavasaya, sankalpa and abhimana as his lingas (characteristics) ; he who is the opposite of this is liberated. "
After revision: The sage of the Maitri Upanishad (VI.30) explains:-