What does it mean to gather the fire of youth and burn the light of the times?

Gather the flame of youth and burn the light of the times. It is expressed that young people should uphold a strong sense of professional identity and historical responsibility, take the realization of the Chinese dream as the theme, strengthen their beliefs, persist in struggle, stick to the bottom line, give full play to the strength of young people and contribute to the development of the times in the journey of realizing the great rejuvenation of the Chinese nation.