INTELLECT X DELUSION X INDIFF

Chapter II: Sankhya Yoga

(Krishna speaking to Arjuna)
II.52. When thy intellect crosses beyond the mire of delusion, 
then thou shalt attain to indifference as to what has been heard 
and what has yet to be heard.
COMMENTARY: The mire of delusion is the identification of the Self 
with the not-Self.  The sense of discrimination between the Self 
and the not-Self is confounded by the mire of delusion and the 
mind runs towards the sensual objects and the body is taken as the 
pure Self. When you attain purity of mind, you will attain to 
indifference regarding things heard and things yet to be heard.  
They will appear to you to be of no use.  You will not care a bit 
for them.  You will entertain disgust for them.