Beg! What is the background music of Jiu Jianxian in the TV series Legend of the Sword and the Chivalrous Man when he recalls the past of Shushan?

I've watched it for a long time, so I can't remember it clearly.

The soundtrack of the TV series of the Legend of the Sword and the Chivalrous Man is

1- Mother Earth 2:58

2- Demon Domain 2:34

3- Peach Blossom Island 3:55

4- After Nu Wa 3: 3

. 3:17

8- A Thousand-Li Marriage-3:17

9- Happy and Free 2:46

1- Lotus Pond 2:46

11- Fairy on Earth 1:56

12- Drunk three minutes wake up 1:7

13-

17- The key to time and space 2:37

18- The world of love 3:47

19- Destiny 3:6

The piece you mentioned should be the Legend of the Sword, which is very imposing and can be found in Baidu.