YES!!
My brother was murdered. When I was at the murder scene I felt something terrible - an ugly and evil feeling. It stayed with me and I could not shake it. Maybe it was depression, maybe it was shock, maybe it was something else. I don't believe that I can make a definite statement about WHAT it was - only about what I FELT and how it affected me.
After I flew back home I went to bed - stayed there for 2 days - still could not shake the evil "thing" that had enveloped me. Later that week I went to the kids music camp at church - I help out every week with the 1st through 5th graders - 80 children signed up. I still felt awful - this evil ugly thing around me. Until................the kids started to sing their first worship song. All those beautiful innocent little voices, all smiling, hearts filled with love and joy - their whole lives ahead of them. With those precious beautiful voices my soul was lifted up and the evil thing left.
By the end of the evening it was gone - that was over 6 months ago and it hasn't been back.
The depression, the shock, the terrible, ugly, evil thing that happened to my brother - and the feelings that overcame me. THAT was SATAN. The love and peace that I felt being in the middle of 80 children full of love and wonder - THAT was GOD.
I don't believe Satan has to materialize as some demon or make things float around the room. We experience him through the bad things that happen in our lives and to others. But we can overcome him by embracing the good things that we have in our lives.