Doubt
I hope I shall never set mind to this again.
Doubt is the state of mind when you cannot trust somebody, because his/her past behaviour indicates future betrayal or misbehaviours.
Doubt between loved ones can create a divide which grows wider over time, and potentially destroys a relationship.
Doubt in business, diplomacy, and society would cause problems that would end long term collaborations.
Doubt is the root of bad emotion, bad relationship and bad society.
Doubt is the result of fear.
Doubt of oneself is very dangerous, it leads to depression.
Doubt is a doubt because it is not confirmed, and once you try to confirm it, you destroy trust even the doubt proves to be ungrounded.
Some doubts can be reassured by a promise, some doubts fade with time, but most doubts linger, and die hard even as time goes by.
I have such doubts, but I also have the courage to embrace, swallow, and conquer them, by putting trust into everyone in my life.