"Lian Po is old, can she still eat?" What does this sentence mean?

Lian Po is too old to eat, which is a poem by Xin Qiji. What Xin Qiji wants to express in this poem is the will to fight for the country and serve the motherland. Lian Po is too old to eat, which is actually an allusion from historical records. Lian Po wanted to tell the prince of Zhao that he was still strong and could go into battle to kill the enemy.

Lian Po is a famous general of Zhao. He was brave and good at fighting, and made great contributions to Zhao. Together with Lin Xiangru, Prime Minister of Zhao, he was highly valued by Zhao Haoqi Huiwen. Later, after the death of Zhao Haoqi Huiwen, Lian Po's age gradually increased. After taking office, the new monarch has been worried about whether Lian Po can still have enough physical strength to support the consumption on the battlefield.

So he sent a soldier to explore the recent situation in Lian Po. Lian Po ate a bucket of rice and ten catties of meat in order to prove that he could go into battle to kill the enemy. But because the soldier was bought by the enemy, he reported to Zhao Guojun that Lian Po went to the toilet three times a meal, so Lian Po was never reused.

Eating can tell a person's physical condition. Going to the toilet three times a meal represents Lian Po's poor digestion. Generally speaking, only the elderly will go to the toilet very frequently. With the growth of age, renal function deteriorated, and he went to the toilet three times a meal, so the prince of Zhao thought that Lian Po was old and no longer appointed.