As light as a swallow in a cloud, what do the lyrics mean?

It means that the body is very light, so light that it can fly freely like a swallow in the cloud, and at the same time it has heroic momentum. "Light as a swallow in a cloud, flying proudly" is a lyric in China Kung Fu, written by Song Xiaoming, composed by Wu Jiaji and sung by Tu Honggang. This lyric expresses a person's light posture and bold personality. This image can not only remind people of light posture and free breath, but also make people feel unrestrained momentum and determination to break through the sky. The first sentence of the lyrics is "Pick the line with a gun" and the next sentence is "Practice your bones and muscles".