This fearful state is hard-wired into the ego mind and it is the root of most of our actions. We fear pain, we seek pleasure but know it won’t last very long. The Buddha says, “Let’s get beyond this turmoil and get to inner peace.”
Because he had achieved this inner peace himself, and was able to communicate it to others, I believe that he was 98% fearless. He may have had some lapses, for the ego mind does not want to die and it lives on fear, like food. Maybe it asserted itself 2% of the time. But like a good a good surfer, the Buddha could get himself back into balance quickly and easily.
We will never know. No lapses into the fearful hauntings of his mind were recorded and he said nothing about them, that we know of. Even Jesus had his moment on the Mount of Olives. Later he released his fear and said, “Nevertheless, not my will, but thine be done.”
The human mind comes equipped with fear and worry as its survival mechanism. The Buddha, though a perfect receptacle for the Divine and perfect order of the Universe, still was human and had a human mind. If he didn’t he would not have been able to pinpoint why we suffer so much and find a way out of it. So that 2% was beneficial to all of us.