Attachment
If we are strongly attached to the pleasures of the senses while 'practicing' to free ourselves from them, we labor aimlessly and vainly, like drunken men who row a boat the whole night without first loosening the chain that binds it to the shore.
We might develop our muscles but we will not reach our destination.
Pleasure and Pain
Who has rightly understood that pleasure is a creature of thought, and is thus free of it, is also free of pain.
Duty
Duty has to be discharged, not for the sake of heaven or of earth, nor for the fear of hell, but because it is God's Will.
Vigilance
It demands unwinking vigilance to prevent insincerity and unwisdom from veiling true insight.
Distinguish
One should learn to distinguish between 'natural desires or urges' like hunger, and 'desires of the mind' like craving for chocolate.