Prayer in a dream is read as reaching beyond yourself for help, thanks or peace. What you ask for, and whether you feel heard, reflects what you most need right now. Praying alone is linked to a private worry, while praying with others points to belonging and shared hope. Being unable to find the words is read as a feeling too large to name. Hearing someone pray for you is read as feeling cared for. Every faith prays in its own way, and dream books read the image respectfully. It can help to notice the words you spoke in the dream.
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.