Truth is very difficult to define. So let us take up some examples of truth, or of how we use the word, 'truth.'
Mathematical truth. "Two plus two" is equal to "four." We say this is true. The opposite is false when we say "two plus two" is equal to "three."
Empirical truth. If I say "I have an elephant in my shirt pocket', then it is false because it is an empirical fact that there is no elephant in my shirt pocket. It is a fact and true when I say that there is a pen in my shirt pocket. This is an empirical truth because anyone, not just me, can see that there is a pen in my shirt pocket.
Biblical truth. If I say that "Christ is merely a man, not a son of God," then it is false because Christians believe that Christ is the Son of God, born without sin. While mathematical truth is based on logic, and empirical truth is based on the senses, biblical truth is based on one's faith. We can say that different truths have different bases.
There is another meaning of truth that is not necessarily based on the aforementioned. This truth is derived from, and created by, one's life. It is a truth that enables one to realize more of his or her nature and destiny. However, this truth is extremely difficult - and, at times, dangerous -to discover because it requires that one has to first accept one's ignorance, that is, that one does not know everything. Not everyone is willing to accept one's weaknesses. Everyone likes to know his or her strengths. Everyone wants to show off his or her strengths. Unfortunately, many cringe at the sight of their weaknesses. Knowing their weaknesses are actually a big step to knowing their selves. It takes moral courage to face them.
Many of us are afraid to know the 'dark side' of one's personality because we have something to hide from the others especially from ourselves. Through the years, we have built up an image of ourselves that we show to other people and to ourselves. This is a false image, a pretension. And it takes so much time and energy to keep up that façade that we actually become weary and stressed out. Furthermore, we become defensive when we sense that people can see through the façade (mask). The more masks we wear, the more we don't know ourselves; and the more we become ignorant and arrogant.
Why do we wear masks? Why do we lie to ourselves and to the others? We lie because we depend on the approval of the others. We want people to like us. There is nothing wrong with that. But, people might like us for the wrong reasons. And worst of all, we might love ourselves for the wrong reasons.
How do we free ourselves from all of these wrong reasons? How can we allow others to accept us for who we are? The answer is to first accept who we are. So, when we have humbly accepted our strengths and embraced our weaknesses, people will (eventually) accept and respect us for who we are. As a result, the truth about who we are sets us free to be who we are and can be.