Knowing that there are tigers in the mountains, what do you mean?

If you know there are tigers in the mountains, you must go to the forest with them. This is a metaphor, although I know it is difficult and even dangerous to do so. It can be used as a compliment to show courage; It can also be used in a derogatory sense, meaning recklessness. From the Water Margin, Song Wu killed the tiger. The antonym is knowing that there are tigers in the mountains, so don't go to Tiger Mountain.

1, from Ji Yun's Notes on Yuewei Caotang (Qing Dynasty).

2. From Chapter 22 of Water Margin.

Song Wu's "Fighting Tiger" (see Chapter 22, seventieth edition of Water Margin) is one of the most famous plots in Water Margin. It shows the heroic spirit of Song Wu by describing the desperate struggle between man and beast. The whole story can be divided into three parts. In the first part, Song Wu drank in the hotel before going up the mountain to fight tigers. His extraordinary capacity for drinking is not only a manifestation of his generous character, but also a necessary foreshadowing for fighting tigers. The second part describes killing tigers from the front. Before killing the tiger, Song Wu had a little idea of retreating, but for the sake of his heroic reputation, he knew there were tigers in the mountains.