Sometimes people ask me why if they have a guardian angel that they have never seen him or her.Angels exist on a different vibrational level to humans so our eyes cannot normally see them. However, when we are half-asleep, meditating or even unwell the angel can often briefly make contact with us. This could be because when we sleep we are in an altered state of consciousness it makes us more open to communication from other worlds.
Why not ask your angel now to show you that he or she is with you by sending a sign?