“You can’t see the forest for the trees.” This often means that people fail to see the larger picture, because they are focused on a small and narrow spot. According to Emanuel Swedenborg, people are innately focused on the materialistic and physical way of living and being, and thus are not capable of perceiving the spiritual reality within which their true existence resides.
Being “born again,” which sounds impossible when taken literally, focuses on the transformation of human mentality (or spirituality), while being “born from above” focuses on the necessity of acknowledging the truth that life is from God, and we are just vessels that receive and contain the life from God.
Having faith in Jesus or in any religion is not about saying certain things because they are considered true and correct by others, but about actually knowing what one believes with experience and understanding. The reality of faith does not dwell in knowing the right things, but arises from living what is true to one’s heart.