Insert
You have fingers in the thousands and while looking up at the sun you decide you want to insert them in there.
そう
さ
None
You insert one finger, it burns up immediately, and its soul (そう) comes flying out screaming for a moment before it disappears. Hmm. You insert another finger and as it burns up, another little soul comes out screeching, "WHY WOULD YOU INSERT ME IN THERE!" and is gone.