what does my dream mean?

i was dreaming in office like i saw a pen with my pocket protector i was doing a paper (of what duno) 3 people ran by my cubicle screaming "RUN!" i didn't get sacred i got curious and check the hall way walk to the end and there i saw a tall person like with 3 long fingers looking at me i walk into room the room was a shop like (knife factory) i pick up a knife and a handful of blades once the thing step in the room i turn around and ran towards it the thing fell apart and a person pop out all scared my friend steps into the room and says you werent scared at all A POCKET PROTECTOR, TALL PERSON, KNIFES, MY FRIEND what does it mean?