Note: Dream images are subjective. The following reading is not a substitute for psychotherapy or medical advice and is not a prediction.
From a dream-psychological and depth-psychological perspective (including work with dream material in the tradition of Freud and Jung, updated with affect- and attachment-based models), dream content is read today primarily as processed emotion and communication between conscious and unconscious parts — not as an oracle. Symbols are overdetermined: the same figure can carry entirely different layers depending on mood in the dream, life stage, and biography. The concrete scene — who you are, what you feel, what happened before in the dream — always matters more than isolated keywords.
Glass in the mouth represents the sharpness and danger of your own words or the words of others you are forced to 'swallow'. It often occurs when you are in an environment where speaking your truth is painful or when you deeply regret something you recently said. It is a highly visceral reminder to be mindful of your communication.
Single motifs from the dictionary gain precision only in the context of the dream narrative: the same cat can carry protection, secrecy, playfulness, or unspoken resentment, depending on whether it approaches, bites, or disappears. Always compare the symbol with your emotional tone in the dream and with stressful or desirable themes from recent days.