“If something is given it can be taken away”
The confidence that is given can be taken away. Meaning that confidence is not acquired externally or from someone. Real good skill or Kung Fu that is acquired through hardship, blood and sweat, given time to flourish is set in stone and is unshakable and therefore gives rise to confidence. Confidence cannot be confused with arrogance and both energies never merge. They are like day and night or light and darkness.