Being awake but unable to move is read as feeling powerless in some part of life. Folk tradition gave it many names, often a weight sitting on the chest or a presence in the room. Dream books see it as helplessness asking to be noticed, not as a harm. Trying to scream without sound points to things you cannot yet say, while sensing a figure nearby is read as fear given a shape. It is a common experience, and naming it often makes it less frightening.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.