What happens when I'm sleep deprived

Two sisters, both alike in dignity,
In fair Equestria, where we lay our scene,
From ancient jealousy breaks new mutiny,
where ponies' blood, makes royal hooves unclean.
From forth the fatal resentment of the sister young,
A star crossed destiny takes it's place,
Which in passing shall overthrow
Do with its end bury Luna's mental strife.
The fearful passage of this evil marked tale,
And the continuance of the Nightmare's rage,
Which, but the elements, nought could end
Is now the grand tale of which you will hear
If with patient ears you listen,
To the story of Nightmare Moon.