Dead Poets' Society All It Was

Ending of movie Dead Poets Society and a poem I wrote on this scene:

On the desks were they standing,
Their horizons expanding,
Bidding the light goodbye,
For the lamps were now, not shy,
They stood there, very tall,
Going beyond, the authority's fall,
Realists were they, in their right,
Standing there with all their might,
Reality taught, what books couldn't,
That chapters ended but life didn't,
Writing this life was their cause,
Indeed, very indeed
Dead Poets' Society all it was