The Bhagavad-Gita (chapter 2, verse 57) says:
In his material world one who remains unattached under all conditions, and is neither delighted by good fortune nor dejected by tribulation, he is a sage with perfect knowledge.
In this, the word “dejected by” is presented by “dveshti” which means envy. The latter is the main mood of people in the guna of passion: neglecting others’ sufferings when happy and being envious while suffering.
We have already mentioned that the Aryans considered that the foremost problem of living beings in the material world was their misuse of their ability to become attached. This very inclination makes the basis of the guna of passion. Sensual pleasures, the flow of desires constantly heard in our mind: want to be beautiful, do not want to become old, want to be the strongest, want to be the richest, want to be a president or a movie star, want everyone to love me, want, want, want, all these various “wants” are the basis of our behavior. If in goodness one uses his/her position to protect others and agrees to follow divine rules to satisfy desires, in the guna of passion the situation is quite different. Notice that the guna of passion is usually not God-centered. Here one is ruled only by endeavors to satisfy own desires. The modern civilization develops under the influence of this very guna. Even if people in the guna of passion approach the Lord, they do it only to satisfy their desires. The consciousness of such people thinks that even the Lord is supposed only to serve them. If a virtuous person tries to coordinate desires with requirements of the Lord, a person influenced by passion is guided only by fulfillment of own desires. Behavior of such people is very chaotic. This happens because based on their opinion they try to regulate their lives and the life of society.
Lust (endless desires) pushes a person to a very vigorous activity. This activity very often evades the Laws of the Lord. Influenced by passion, a person makes laws for others and always foresees back channels for him/herself. The main desire of such people is to get the pleasure from everything surrounding him/her, be it a cheerful conversation, wealth, sensual pleasures and others. The axis of their activity is sexual pleasure. With this, sexual pleasure does not mean only sexual relationships literally, but also everything providing them. Absorption in these pleasures makes problems.