The document appears to be lyrics from a graduation song summarizing the experiences and friendships of a graduating class. In 3 sentences:
The song celebrates the friendships and memories made together over their school years, promising to always be there for each other through good times and bad. It reminds them not to forget this time and the strong bonds they share as the best group. The lyrics express sadness that their school days are ending but optimism for their future paths as the class sings and dances together one last time.