Negativity is generated in the Mental Dimension as a result of believing that the External World and its current circumstances, are much bigger and powerful than that of the Internal World, of you, to the point of feeling hopelessness, and believing that you are powerless against the External World. Indeed, negativity is hopelessness, and hopelessness is pity and weakness.
Why are some people more pessimistic than others? It is because they are unsatisfied with the current, and they believe that the current is much more powerful than they are, as a result of their lack of awareness towards the great potential they contain. Negativity is to surrender the powers of the Internal World to the might of the External world.
To adopt a negative mindset is to create despair without being using one’s mental powers to overcome the negative-inspiring objects. The assumption that the Internal World does not exist as internal, but as a tiny part of the External World, is what leads to hopelessness, of giving up instead of protecting and fortifying oneself from the impurity of the external stimuli. Thus, pessimistic people are voluntary slaves to the mercy of the External World.
To only think negatively about others, is to limit one’s perception as a result of constantly using negative thinking in general. It is an unhealthy and ineffective way of protecting oneself from the might of the external stimuli. There is more into life than just the negative aspects about people, and there is no such thing as a purely-well person, just like there’s no such thing as a purely-lame one. The human personality is much more complex than its negative aspects which compose it.
To be optimistic is to overcome the temptation for hopelessness, despair and self-pity. The optimistic person possess the power to preserve their own distinct individuality from whatever the External World may hold for them. Even at the most unfortunate of circumstances, the optimistic person is a self-sufficient, optimally-autonomous being, that does not let the External World invade and conquer them. They can endure and experience unfortune and disturbance without converting their mindset into an unfortunate and disturbing one. Even at times of unfortunate, the optimistic creates a Barrier of Endurance that can absorb external stimuli without letting it pass their defense and poison the inner layers the Barrier protects.
Indeed, those who are truly strong and healthy are optimistic, and can endure pessimism without letting themselves become one with it. To accept optimism, is to accept the eternity of the External World’s dynamic uncertainty, and seeing oneself as separated and disconnected from that eternity.
There is a fight between two people down the street - you are not the fight; a baby desperately screams - you are not the waves of sound you receive from the baby. You are the hanger, not the planes that land in it. The planes come and go, but the hanger stays the same, unaffected by the landing and the takeoff of the planes that come and go outside of the hanger. Regardless of the weight and of the noise of the planes that come and go, the hanger is not the sum of its planes, but the space which contains them and let them go. Even if a plane is to be heavily damaged, and another plane makes a very rusty noise - the hanger is not equivalent to the nature and condition of the planes that arrive from the External World. Even if the planes are to be changed and customized, the changes and the customization does not affect the hanger itself.
This is negativity - to kneel and bow your head in surrender to a mighty force. This is optimism - to stare directly into the mighty force, and remain a separated force, like a statue in a massive flood of rain. Even if the rain is to consume the space that surrounds the statue, it does not consume the statue itself.