Newton is a great man for having discovered the Laws of Motion, of which the most all-purpose-quoted is the third one "For every action there is an equal and opposite reaction". And the same goes for emotions - for every emotion there's an equal and corresponding (not always opposite, mind you) emotion.
These emotions! Baaaah! How difficult it can be to express them...! The first emotion that comes to mind is aamchi looooouuuuuurrrve (okie NJ.... I hope I kindle fond memories..... and you can stop laughing now :D)!
But have you ever realized that it's even more difficult to control expressing emotions rather than outright expressing them? Once expressed (hopefully in the right fashion), the deed is done. Blessed phew.... er.....I mean relief! Out of the system.....out of mind.....balance is restored in nature and self.
Think of the converse. Like a worm gnawing away slowly on the insides, a thought ricocheting within the mind can be so distracting that one would be torn between expressing it and facing the consequences rather than hiding it.
The universe functions on a principle of balance...... an sense of equality. This is extended to all beings, from the smallest to the largest, from the tiny to the intelligent, from animals to humans. And we, being the most complicated of beings ((no) thanks to these emotions again!) maintain this balance in our own unique ways. We earn money only to spend them. We eat food to produce energy. We work throughout the day to sleep during night. In the same vein, we are receptive to emotions as well. We understand, comprehend and assimilate emotions in an individualistic manner. Ultimately, once an outlet is found, equilibrium is restored. Peace reigns within the being.
While some of us are mature enough to recognize the volatile ones and accordingly think of a safe outlet, others express them in the form of violence, anger, destruction, harsh words, jealousy ....so on and so forth goes the list of negativities. The end result is the same, except for the fact that the negative emotions let forth in a negative manner would have induced a chain reaction in others. Pity......a lack of forethought......and a whole maelstrom of emotions.....
Expressing emotions.......I think it's an art. Sometimes harsh, sometimes gentle......sometimes spontaneous, sometimes planned.........sometimes so near the surface, sometimes so deeply buried that it's forgotten. Perhaps expressing them requires finesse......or perhaps not......because anything that is thoroughly practiced is no longer emotional.
p.s And that's why we have songs......all for expressing emotions in a musical way :-)! Perhaps this and this say it all....... :-)!