It is easy to make an excuse or even pose what might appear to be a valid reasoning for why we may not see, hear or comprehend something/someone.
However, if we looked all over the world we would indeed discover the Truth in a text of teachings called the Holy Bible, which is the "breath of God". Therefore, this means that the Messiah (Jesus Christ) that the bible speaks of is LIVING!! AND...THERE IS NO EXCUSE NOT TO KNOW, apply and LIVE according to such a kind of behavior that reflects these Truths & Commandments to guide our way of life.
Jesus Christ leaves us with a great account and explanantion here:
Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand (Matthew 13:13).
Jesus spoke in parables - earthly stories with a heavenly meaning. He did so that his disciples would comprehend his teachings and that unbelievers would be without comprehension. Now ask yourself where can I find the answers to ALL of my questions, solutions to ALL of my problems and at the end of the day LIVE Holy and be rewarded daily and eternally!