Outside somewhere and small needles in body

Date: 7/4/2018

2:32 pm I remember being outside somewhere in a random unfamiliar place. It was on this field and it was sunny and warm out. Me and all the people playing around out there got these small glass needles stuck into us and I spent much of the dream slowly picking them out. They hurt a little bit but not too much. It freaked me out though because there were so many especially on my legs