Seeing Auras And Lights

Alright so I was walking to school the other day and I felt the front of my school bag. I felt a circular tube object, that I thought was a pen lid. This was weird to me as I have a pencil case so I wondered again. I suddenely breathed in once through my nose and smelt a strong smell of nail polish (which is weird when I'm in the street). I then felt the rest of this tube to find it led to a square shape; behold it was my nail varnish.

I also see lights sometimes. I learned to read auras awhile a go but sometimes at night while I watch t.v at the top of my vision; so on the ceiling I see blobs of light. It is sometimes yellow or white. When I look it goes (like most of my experiences).

Another thing that happened to me was this. As I've written before I have seen glimpses or experienced what I believe to be the spirit of my dead cat. A few months ago I opened my bedroom door and as I did I dropped my sock on the floor. I bent down to pick it up and saw a black figure of what looked like a cats bum and tail whizz around the stairs balcony and as if to go down the stairs. I hurried to look down to stairs thinking it was my cat that is still alive yet there was nothing there. It hit me after as well that no noise was heard whilst this happened.

I mostly want to know about my first paragraph. Is it possible that you can know what an object is by smelling its smell? Since I've never heard of this before.

Thank you for reading.