mouse * * * ok

Second dream, just as strange: I see myself crossing a room heading toward a very sunny opening, and in this room dead mice are lying everywhere. I hear someone say, “Well, there are quite a few dead mice here,” but it doesn’t disgust me. I walk straight toward that light (a doorway without a door, just the frame, but a light that isn’t artificial, like a large ray of sunlight). I don’t see the person I’m talking to, but I know I wasn’t alone.
Thank you, celiabebe

Hello Célia:

Crossing:
She announces a period where destiny will never be the same again, a period of sorrow, a break with the past, a transitional period.
To cross a wood, a river, is to pass from one state of mind, one state of life, to another.

Piece, opening:
They are part of the house
It's a shame you didn't specify which room in the house.
In any case, it's a part of the core of your life:
House:
The house represents the sacred center of the dreamer's life, their state of mind through events, and their earthly position in relation to celestial influences.
She is the life of the dreamer, the continuous fabric of his experience.
The kitchen announces upcoming events, the mutations.
The bedroom sets the tone for love and health.
The living room or parlor reveals what pertains to life in the open, social life, feelings, and legitimate love.
The cellar represents the unconscious, that which begins to germinate in the conscious in relation to current observations.
The ground floor concerns concrete thought, events destined to come to pass.
The upper floors refer to the color of one’s way of thinking in relation to what one is experiencing, and the effort to adapt to it.
The attic often represents introspection, a return to one's memories. It is all that accumulates over time, sometimes the reminiscences of the past that one must let go of.

The door and the threshold constitute a degree to be crossed in order to better know oneself. It is about overcoming the prohibitions of social conventions and attempting to merge with one's true personality.

Mice:
Generally, the mouse foreshadows a moment of intense depression.
A large number of mice represents a secret burden that undermines morale.

Light:
Light is a boundary, a passage between the invisible and the visible, between inexperience and experience, between incomprehension and comprehension, struggle and victory, failure and success.
Light is the companion of the initiate who has fought and won the prize of the resounding victory. The true sun lives in the heart of the enlightened one.
The dazzling light makes one grasp the revelation, the meaning of the mysteries.
Clear, radiant light is a sign of joy, dynamism, and positive energy; it is the promise of heavenly support and the end of a period of depression.

Summary:
Well, there you have it! The worries are over, the crisis is behind us.
There you are, on the path to your inner light.
And given this second dream, I would be inclined to think that the presence you felt and that spoke to you was your guardian angel, your guide showing you the way.

Best regards

Thanks for your explanation. If I didn’t mention the room, it’s because I don’t know which one it was; I didn’t see any furniture or I didn’t pay attention. I think it was on the ground floor, since there was a hallway right after opening the door.
You told me it was my guardian angel? Could it take the face of someone I know? And what it told me, can I take that as something that will come true?
Have a good day, thank you.

Hello,
May your guardian angel take the face of someone you know, I don't know, but what I was taught says that it does not.
On the other hand, we are surrounded by a multitude of entities that are either good or bad. We cannot know this, so we must always be wary of them.
Although, as a rule, those of missing persons have, in the afterlife, the same qualities and flaws as here on earth.
But that no longer has anything to do with dreams and is no longer within my area of expertise. I believe there is a more appropriate section on AZ.

Best regards