Passion

Passion is as normal an ingredient of a body, as others, like thirst, hunger, sleep etc. It is not a quality or a vice of the human body but a part and parcel, which accompanies it since its birth. It is not something like knowledge that one acquires, it is a component of Nature, that we receive in inheritance like other tendencies and their intensity varies from person to person. People with volatile passions beware otherwise low depths of degeneration, would lead them to perversion and low grade debauchery. 
By understanding and accepting it as a normal aspect of Nature, which is inherent, both in animate and inanimate entities, and no human being is specially endowed with it. Passion is normal but as soon as it transforms itself into lust it becomes a negative tendency. We should be careful enough that it should not harm us.