This sentence is used to describe a person who will not give up easily when facing difficulties or challenges, nor will he be affected by surrounding interference, but will move forward firmly towards his goal. It expresses the belief that a person with a firm belief and a strong heart is like wearing indestructible armor, holding a sharp sword, and moving forward bravely, without being shaken by the temptations or difficulties in front of him.

Specifically, "love and love" means that a person has a strong backing and many people who support him, which makes him more confident when facing challenges. "As if wearing armor" means that the person has indestructible faith and determination, just like wearing a suit of armor. "Excellent as holding a sword" means that this person has superb abilities and skills, and can handle various challenges with precision like holding a sword. "A general will not chase hares when he is on the road" means that this person will not be swayed by the temptation or difficulties in front of him. He will keep moving towards his goal and will not give up easily.

The origin of this sentence can be traced back to the ancient Chinese literature "The Art of War", in which there is a famous saying "A general will not chase a hare when he is on the road." Later, this sentence was quoted by Zang Fengyu in "Three Parts of Life" to describe a person's firmness and determination in pursuing his life goals and beliefs.