What concepts? That you are more intelligent than the God who created the heavens and the earth and everything in them? Sorry, I could not find that anywhere in the Bible. Jesus spoke to the disciples in parables. They did not see the big picture because not everything had been fulfilled. We have seen everything fulfilled in His Holy Word. He does not speak to us in parables, He speaks to us thru his written Word. Beware: Revelations 22:19 If anyone takes away from the words of the book of this prophecy, may God take away his part from the tree of life, and out of the holy city, which are written in this book.
Interesting thing about the parables is that Christ spoke to the masses in parables but always explained the parables to his disciples. So we this day have benefit of what he said in parables and what the parables mean.