The one who does not have even a trace of sexual thoughts is referred to as a saiyam parinaami (one who is free of anger-pride-deceit-greed, attachment-abhorrence).  

The circumstances of these three - conduct, thoughts and speech, are constantly changing from moment to moment.   

Undecided thoughts’ is called the mind. ‘Decided thoughts’ is called the intellect.

The worldly life remains [and is not ending and one is not going to moksha] due to the pollution of the mind [bad mind/bad thoughts] and not due to the pollution of the body.

How can the thoughts be stopped? Tell the thoughts, ‘You take care of your own issues; I am not on your side.’ That way you will sit on God’s side.

One binds the worldly life with bad thoughts; one binds the worldly life with good thoughts. With the absence of thoughts (avichaar) there is moksha [liberation].

The thoughts that arise because of 'depression' or 'elevation' are all wrong thoughts. The thoughts that arise in 'normality' are 'correct'.