Trust,

Trust - What is a trust? Why do we trust? What happens if we trust? Questions like that comes always in our mind if something happens.

Trust is both and emotional and logical act. Emotionally, it is where you expose your vulnerabilities to people, but believing they will not take advantage of your openness. Logically, it is where you have assessed the probabilities of gain and loss, calculating expected utility based on hard performance data, and concluded that the person in question will behave in a predictable manner. In practice, trust is a bit of both. I trust you because I have experienced your trustworthiness and because I have faith in human nature.
We feel trust. Emotions associated with trust include companionship, friendship, love, agreement, relaxation, comfort. There are a number of different ways we can define trust. Here are the dimensions of trust and consequent definitions.
When we trust other people, we may not only be giving them something in hope of getting something else back in the future, we may also be exposing ourselves in a way that they can take advantage of our vulnerabilities. If I buy a car from you and I do not know a good price, you can lie to me so you get a better bargain. If I tell you in confidence about the problems I am having with work, you could use this to further your own career at my expense.
Although the threat of retribution or projected feelings of guilt can counteract your temptation to abuse my exposed vulnerabilities, if you succumb I still get hurt and may still end up with the shorter stick. For our transaction to complete successfully, I must be able to trust that such agonies will not come to pass.

 In the end, there are 4 different deffinitions o f trust:
1: Trust means being able to predict what other people will do and what situations will occur. If we can surround ourselves with people we trust, then we can create a safe present and an even better future.
2: Trust means making an exchange with someone when you do not have full knowledge about them, their intent and the things they are offering to you.
3: Trust means giving something now with an expectation that it will be repaid, possibly in some unspecified way at some unspecified time in the future.
4: Trust means enabling other people to take advantage of your vulnerabilities—but expecting that they will not do this. 

 But what happens if our trust will be betrayed? How should we feel when about ourselves? Should be feel shamed, because we trust other people and they just betray us? How should we feel happy if some things are making us sad. How should we behave? So many things and thoughts and questions will rise just one small word up. What should we do, if our heart will be teared to parts and mind will be messed around by thoughts?