In the gospel of Jesus Christ we have help from both sides of the veil. When disappointment and discouragement strike—and they will—we need to remember that if our eyes could be opened, we would see horses and chariots of fire as far as the eye can see, riding at great speed to come to our protection. They will always be there, these armies of heaven, in defense of Abraham's seed.
Elder Jeffrey R. Holland, “However Long and Hard the Road”, September 2002
Sometimes I ponder on the concept of angels. I know they exist. I have no doubt. I know they have the ability to be seen or remain hidden. I know they can appear as mere mortals and may be seen as just another person, or in might and glory, as Elisha or as did Moroni to Joseph Smith. I know angels also have incredible powers based on their assignments.
If I only my eyes would be opened. I've pondered on the phrase many times too. The mortal, finite, part of me thinks that I'm of no significance to warrant such guarding and protection from those on the other side. However, thinking beyond my mortal perceptions and understanding, I know that every soul is precious in the sight of God. He sees me for who I can be, and as His son. He considers me just as important as President Nelson. I just don't have President Nelson's calling or stewardship. President Nelson is also one of the noble and great ones foreordained.
I've mentioned before that my blessing says that I "will entertain angels unknown to me". Entertain? What does that mean? Will I provide some amusement to those watching me (I'm sure I do some very silly things)? Do I sometimes do something to break the monotony of being assigned to watch over mortals? Maybe they recline and eat popcorn and enjoy a good show. 😁
Rather... to entertain has another meaning. It means to give attention to. Angels, by their Gospel definition, are already paying attention to those they are called to watch over. So, it has to mean more than that. Does it mean that I will pay attention to them somehow? I can't pay attention to them if I don't know they're there. Interesting.
Anyway, I've felt warnings and other support throughout my life from beings I couldn't see but I knew they were there. Maybe that's what it means. I'm sure it's part of it. To me, their support is not some miraculous event. They do things for us every single moment of every day. The miracle happens when our eyes and understanding are open to what they are doing for us.