I have been spending quite some time in Xiaohongshu (Red Note/Little Red Book), a China-based social media, and on one video, I heard this song (slowed and reverb), the video showing a view from a train going through the cold northern part of China. Someone asked on the comment section what song was this, and another kindly replied with the song title.

The lyrics’ translation, from the Youtube comment:

Fly. It's time you wish to fly.
Fly. When you liberate from your own misfortune.
At the top of mountain of hope for freedom.
Fly now. Fly now. 

Fly. If you wish to find that authentic consciousness, fly.
If you wish to find that great primordial dream, fly.
Fly. Fly now.
If you don't fly, this lifetime will be wasted.

(Chorus)
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.

(Rap)
Stretch our your own wings then!
Carry out those amazing dreams then! 
Go beyond the ocean of Samsara then!
Fly to your place of joy & happiness.
Then fly in search of that primordial consciousness.
Fly~

(Chorus)
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.

Fly. It's time you wish to fly.
Fly. Cross over that meaningless livelihood.
After this, have faith in the amazing life force.
Then fly. 

Fly!
If you wish to find that beautiful, radiant smile of your own, fly.
If you wish to find that great nature of yours, fly.
Fly. Fly.

(Chorus)
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.

(Rap)
Liberate from your own misfortune.
If you are pleased with your own self, fly.
If you wish to find that authentic consciousness, fly.
If you wish to find that primordial dream, fly!
Having crossed the meaningless livelihood,
trust the amazing life force and fly!

(Chorus)
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.
If you don't fly, this lifetime will be wasted.
If you don't fly, hope will be lost.

Read more about ANU here: Tibet’s most popular song is by a hip-hop duo whose name means ‘youthism’