The magical fairy door

As I was lying in bed I saw a little thing flying around, It flew to the corner of my room and disappeared, that was strange I thought so I jumped out of bed and ran to the corner of my room. My eyes widened, wow it was amazing there was a little door with a little green ladder just as I went to open the door a fairy appeared, it was fluttering around very worried. It said in the smallest voice ever “oh no no no this place isn’t safe for a human” I thought what does this mean…