"If you are far from the enemy, make him believe you are near"

This quote by Sun Tzu is a reminder to use deceptiveness and misdirection in order to get an advantage in fight. Sun Tzu is suggesting that if you are far away from your opponent, you ought to make them believe that you are better than you actually are. This can be done by producing an incorrect sense of security or by using methods such as feints and incorrect retreats. By making your enemy believe that you are better than you in fact are, you can gain an advantage in fight by capturing them off guard or by requiring them to make a mistake. Sun Tzu's quote is a tip that deceptiveness and misdirection can be powerful tools in fight and should be used when required.