4 stages.

There are four stages of nonattachment. The first is to make a sincere attempt not to allow the mind to dwell on sensual objects. When objects beckon the student he should endeavor to free himself from those attractions. With the gradual dawning of discrimination, nonattachment develops and equilibrium is established. This is the second stage. When the senses have been subdued – the third stage, the mind responds with hatred and affection for worldly objects because it can function independently of the senses. In the higher stages of nonattachment the objects of the world do not tempt one at all. The senses are under control, and the mind is perfectly free from likes and dislikes and all other pairs of opposites. This is the fourth stage. The aspirant has now gained independence and supremacy.

-SWAMI RAMA
Lectures on yoga [pg 6]