1. The dragon is missing its tail, just like my study state before the exam. I always see questions, but I can't find the answers.
2. The dragon lacks its tail, just like when I shop online, I always see the goods I like, but I can't find the button to buy.
It's like I always see others practicing well in the gym, but I can't find my own muscles.
The above is a humorous statement that the dragon sees the head and does not see the tail. I hope it helps you.