Truth and perspective--interesting. There are some things that are TRUE. These would be scientific facts or mathematical certainties. Other than that, the truth is filtered through individual perspective, and that truth might only be truth for that moment in time. For example in my perspective murder is wrong, but I have no doubt that I could kill someone if s/he was endangering my family. That being said let’s consider this, "’Beauty is truth, truth beauty,’ that is all/Ye know on earth, and all ye need to know."
When you put the words, "perspective" and "truth" together, you have the makings of a complex relationship. I know that many people will have differences with me about the nature of truth, but I think that truth exists out there, but it is clouded by various perspectives, historical contexts, social backgrounds and transitions of life. Hence, we all see dimly and all have many blind spots. This is why when we look back we usually say to ourselves, "man, I don't know why I did not see this." And this is why one generation thinks that another is blind. In short, as you say truth is often times hidden.
The truth of life is now cloaked by perspective because, in the words of T. S. Eliot, "Humankind cannot stand very much reality." With the conveniences of modern life, the drugs that alleviate depression and other psychological states, the media that provides ready-made viewpoints and perspectives, people have become weakened as they consciously and unconsciously eschew reality.
This avoidance and altering of reality is a prevalent theme in literature. For example, Eugene O'Neill's "Long Day's Journey Into Night" has its plot revolving around Mary Tyrone's inability to face the truth about the past and her escape through the use of morphine. She, like so many, is too weak in spirit to face the truth. And, there lies the distinction, as Henry Kissinger remarked,
The real distinction is between those who adapt their purposes to reality and those who seek to mold reality in the light of their purposes.
Reality is yet reality; it does not go away. However, too many nowadays choose to hide it from themselves, like Mary Tyrone, in their weakness of character.
In the words of Oscar Wilde "The truth is rarely pure, and never simple". This embodies the answer to your question.
Truth is what the general consensus agrees to consider causative and consequential. It is, to the best of our knowledge, the more tangible evidence of reality.
However, truth, crude, pure, real, and unadulterated, is impossible to reach as far as sensitivity, temperament, subjectivity, opinion, and humanity is involved in the process of explaining it: Even the most debated and clearly understood scientific topics are met with the wall of belief or disbelief, acceptance or rejection, and absorption vs. rejection. All this is based on our human and imperfect nature.
Charles Colton said this about truth: Pure truth, like pure gold, has been found unfit for circulation because men have discovered that it is far more convenient to adulterate the truth than to refine themselves.
People will always color the world to the way they want to see it--for better or worse.