A person can feel that he has many foes- Those who are jealous of his growth, power, wealth, beauty but what one doesn't realise is that his own anger and ego is his biggest enemy.
Because anger and ego cloud judgement, just like smoke covers the fire, dust covers the mirror,a foetus is enveloped by the amniotic sac and even clouds can hide the moon.
A person even after achieving success needs to be humble and ego should be kept aside, one can loose everything one has achieved in mere seconds.