What does the ancient poem of Youlan mean?

Tao Yuanming's You Lan

Orchids grow in the vestibule, which contains the function of fumigation for the breeze. When the breeze blows, I will see you in Xiao Ai.

If you get lost, you may be able to cross it. If you think about it after waking up, the bird will waste a good bow.

Orchids, which should grow in secluded places, grow in the yard, with strong directionality waiting for the arrival of the breeze. When the breeze blows gently, orchids give off bursts of fragrance, which can be immediately distinguished from weeds such as Xiao Ai. If you go straight ahead, you will lose the old road, and maybe you can walk in front of nature. You should go back when you wake up. Without birds, even the best bows and arrows are useless. Metaphor has become a great event, a good hero is useless, at your disposal.

This poem uses orchids to compare people's noble character, and a gentleman should maintain noble moral integrity like orchids, which shows the poet's noble character of not drifting with the flow and not being contaminated by dark dirt.