Nights I Wake Up

I've been waking up in the middle of the night for what reason? Should I look into it, it has been happening for quite some time.

Sanity: the ability to think and behave in a normal and rational manner; sound mental health. This is the story of me, Apple Bloom. I've woken up with a voice ringing in my ears. What does this mean? It tells me to go to the Everfree and to "him".

(First person narrative on Apple Bloom).