What is the meaning of half an armor of the rhetoric boarding party

Meaning: when writing rhetoric, it is as serious as going to the battlefield and needs to be equipped with battle armor. The meaning of "half an armor" is that when you are writing a speech, you are as serious as when you are going to the battlefield, and you need to equip yourself with the armor for the battle; "I am not perplexed, but from today onwards" means that although I have already reached the middle age, there are still a lot of things I don't understand, and I need to continue to learn and explore, and it also implies that from now on, I need to cherish my time more and pursue my ideals and goals more diligently. At the same time, it also implies that from now on, one should treasure time more and work harder to pursue one's ideals and goals. This line expresses the poet's thoughts and feelings about life, and warns people to face difficulties and challenges bravely, constantly improve their abilities and qualities, and pursue a more fulfilling and meaningful life.