Just sharing a personal and very real experience from a few years back. It was New Years' celebration time. I was suffering depression at this point and felt like my life had taken a turn for the worst and even worse, it felt like a one way road.
While my family was watching the fireworks on TV downstairs (we were at my aunt and uncle's house), I was upstairs lying down in a spare bed, in a deep state of depression. It literally felt like a New Year of nothing, again...
I was self loathing, hated being alive and hated the world. I was looking out the window with tears in my eyes... I closed them. It only felt like a few seconds or so. I was then looking at female figure, standing right in front of me app. 2 - 5 metres away. She was tall! She was so tall!
I noticed a few things about myself and surroundings: 1. I was not asleep 2. Still lying down on something 3. Still in the same room 4. The physical objects (dressing table etc.) were still there I could sense them, but they were invisible 5. Calm, almost no emotion 6. I was on a different plane of existence 7. It was dark, but not pitch black.
I briefly looked around me and looked back at her. Things I noticed about her: 1. She was tall 2. We have the same face 3. She had no blemishes, eyebrows perfect, long black hair (I sensed) in a perfect bun, nice body, skin is slightly paler than mine 4. Wearing a long unstained perfectly white robe to the floor 5. Right foot was resting on a grey mass 6. Neutral expression 7. She was so beautiful!
I spoke to her, "What are you?" She replied, "I am a white angel over you." The words came from my mind, I can't remember if her lips moved when she replied. As soon as she said that, I felt like a vacuum sucked me back to my body, and I literally opened my eyes as my body physically jolted.
All of that felt only like 3 or 4 seconds, not more than 5. I slept soundly afterward. I now only know her as 'White Angel'. I feel that myself as a person, am based on her, but my choices in life, made me look and be completely different. The gray mass I feel might be my negativity, she was stepping on. Humans weren't meant to look, feel and be that perfect.
Looking back, I sense her to be a very strong character. I'm not sure what type of angel she is.