Each of us have truth, the experience of life that you have come from. It is unescapable. It is a place that began out of your control. Where, when, what, who and often why are elements of life that as children we are thrust into.
When you were born you are placed in a historical point you can not change. Where you were born decides the culture you will be raised to believe and be grounded in. What events happen are in general out of your control as the world is large and chaotic.
From these you stand today as a person affected by each of these. Much of what you believe, your perspective is trained into you by your surroundings. Who you are today may be engrained. But it is not unchangeable. Who you are, today, you can change to be something different tomorrow.
Why would you want to change? In this moment, today, are you Happy? Sad? Loving? Hating? The elements you are in do not matter. It is your comprehension and questioning of the thoughts that shape the who and open you to the possibilities of why?
When today you question the why, you open up endless possibilities for your tomorrow.