The most powerful engine.

When the baby suffers the pains of traveling from the nice womb to the outside of the mother, he starts realizing that there is a new world to discover; in his own way, he is filled with joy and amazement.  When he was in the womb, he was already in duality, because he felt misery and happiness as well; when the pregnant mother became sad or entered into arguments that affected her, the baby or fetus inside felt pain; when the mother had a foot massage and was surrounded by love, the baby felt warm love and happiness. (Although the baby or fetus did not know the mental concepts of happiness and misery, because his conscious mind was not formed yet since the conscious mind is formed mainly by the full physical senses, but he felt the natural emotions that tied him to the mother).

This is to say that to understand the strength you really have within you, you must know and experience pain, welcome it and do not try to avoid it or run away from it.  As a wise grown up you walk your journey in life with this duality in your mind, your ego is powerful like for the rest of us; however, you have the capacity to understand pain when you feel it, so then learn to accept it, and become one with it, because you experience life at its fullest by understanding its ups and downs clearly.

See, the problem that most people have and do not understand why they have it in the first place, is lack of comprehension on duality, pain and pleasure, happiness and misery; and this comes about because they just experience life on the surface, they just live their own life as it comes, there is no understanding of why things happen and of why they feel what they feel.

This is just cruising by and letting the waters of the sea rock your boat and toss you here and there in danger of losing your course and drowning.  You must guide the boat or ship with a mighty engine, with mighty understanding only the wise possesses.  Because to elevate your own mind and reach that state of conscious bliss, you must become wise and embrace pain to be strong and confident.