You say that "when we will put ourselves on the side of what we know is true, then the Truth takes our side." People are constantly using the word "truth." When you say that "Truth takes our side," this seems like a religious statement and leaves me void of any comfort whatsoever, because truth is relative... what is your truth, may not be my truth, and visa-versa. Real truth does not have any side. It is just what is!
There are relative truths which is why the world is sinking in the stinking mess that it is. Then there are truths that are not relative but mandatory for anyone who wants a higher, happier, and truly peaceful life. These truths include being compassionate -- which is impossible when we are fearful or angry (also a truth). Another eternal truth is that negativity prohibits learning and cuts off the one who holds to it as an answer. So you see, there are truths that are timeless and that are irrespective of any so-called religious beliefs. It is these truths, alive in the sleeping heart of each of us, that strengthen us, shelter us, and bring us comfort -- but only once we are awake to them and not asleep in our aching that always has a good reason to attack (someone or something not of their liking). It is truths such as these that make it possible for us to discover the existence of a Truth that belongs to all.