My full given first name is Samuel, however I have never really connected with that. Maybe because it's boring and common and because of its meaning, I'm not sure. I have always gravitated toward Samael, or Sammael, as I prefer it. I can't really explain why to be honest, it just feels more... like me.
As to the meaning to me, in a spiritual sense it's not really much, it's more about ideas I relate to. I once said to a friend Samael was my angel, but given that I am personally more inclined to the non-existence over existence of such things as angels, it wasn't really in any seriousness. (note that I am not stating any absolutes in terms of existence, merely my own current perception, which I make no claim to be either final or correct). I've always had a strange fascination for any concepts of the personality of death, or death as some kind of being. There's something about that that draws me to... I know not what.