What do you fear most?

I have a big fear of needles, also i dont like massive spiders. I guess the unknown scares me a little bit. What i realised quite recently was i dont like the dark lol, not as in im scared of it at night. I guess its a bit similar to the unknown really. I was going to step into our garage, and it was like pitch black and i had this sudden feeling like i was really scared because something could be hiding in there to kill me and i cant see it.