Two churches, actually, both in New York State. Over this past weekend, I attended a seminar/retreat/presentation at church discussing the development of worship, and the speaker mentioned as an important point, we should always be aware that in church we are in Heaven with all our loved ones around us. (Especially the ones who made it to Heaven rather than the other place.)
First incident took place in 1985, either late May or early June when I had just turned 18 and was no longer eligible to be in the youth group but remained an adviser, and also an altar server. During the meeting in the church basement, I got up to get something from the kitchen and noticed a tray that needed to be in the altar server's room the next day for services, so grabbed it and took it up. After making proper reverences, I entered the server's room to put the tray down. Glancing up, I saw a figure standing in front of the altar itself, glowing a soft blue-white. It looked human in shape, standing about 6 feet tall, and had what appeared to be wings. It watched me take care of business and then flee the area at a relatively high speed.
The second incident happened just last night, and I would have posted this last night if I wasn't so tired.
During a Lenten service, I had to use the restroom, so went to the basement where they're located by way of elevator, took care of business and returned. The elevator, of course, has a safety feature to prevent the door closing on anyone, and around all the elevator landings, motion sensors turn lights on and off. So I'm standing alone in the basement by the elevator when a set of lights which had been off, turn on. There were two sensors in the basement, one right by the elevator where I was and the second by the restrooms, and the restroom light came on.
When the elevator doors opened, I hastily boarded and hit 'close door'. The doors started to close, and less than a second later stopped and opened again.
This is not the only such incident I've had with elevators. Those things are spooky at times.
So, let me preface this by saying that this is only a theory and I'm not saying I'm right but it's just a view point I'd like to present. Apologies in advance.
Firstly, I've always been fascinated by eastern orthodox. I don't understand all the beliefs but to me it's pretty fascinating. So now coming from a Roman Catholic background, to summarize, that we believe that the angels are present around the altar. We worship with "the communion of saints" so that is similar to what I think they were saying when they said that your past relatives are present at the altar. I agree with what was commented earlier about past relatives being present at all times, but I think it relates back to the idea of this community at the altar which is what your (priest?) Was saying. He wasn't saying they aren't always present but it can be believed that those in heaven are present at the altar during communion.
Secondly, what people can believe in their religions can be a truth to them and if this (priest?) Was saying that he believed that the deceased were with them, coupled with the faith of the parish they could have collectively brought their relatives to the altar as we are still with the deceased in many ways, as some believe, and they could "hear" what was being thought/said.
Now if it was an angel which it sounds like it could be, it refers to some scripture versus that many people have quoted me. Now I don't necessarily agree with it, because I am still discerning the meaning but it relates back to why some women wear head coverings in Church, "because of the angels". Because of the order and hierarchy of the spirit realm. The angels are to give an account at the judgement.
Which I was going to quote stuff but everyone can just look it up in their own versions of their Bibles if they want to...it's "1 Corinthians: 11-10" which is what a lot of people quote when they say that you are to wear head coverings in Church because of the angels. There are also other verses that relate to the angels being present at the altar as well.
Now that's if what you saw was an angel. Being that it had wings, it's a possibility. I know most of the topics on here are "ghosts" but to me angels are in the spirit world as well and it in my mind should be in the same topic realm. Whenever I have seen "ghosts" throughout my life I had to question if it was an angel, ghost, spirit, guardian... Etc there are many things it could be. I'll also offer the idea that it could have been a dark force as well... I have known stories that people who have worked in churches have told me where they felt dark prsecence as well. Just because it's in a church doesn't automatically mean it's good... I don't know... Possibilities.
But I just wanted to present the theory and you can discount it if you don't agree. Peace. π