Dreaming about being back in your grandma's house, especially in a familiar space like your old room, often signifies a longing for comfort, safety, and nostalgia. This setting may represent your childhood memories, a sense of stability, or the values and lessons you learned growing up.

The presence of your boyfriend in the dream may indicate that you are seeking to integrate aspects of your past with your current relationship. It could suggest a desire for deeper emotional connection or the blending of your past experiences with your present life. The shelf full of books might symbolize knowledge, wisdom, or personal growth, and could imply that you are reflecting on your experiences and how they shape your current relationship.

Consider what emotions you felt during the dream. Were you happy, nostalgic, or perhaps even a bit sad? This can give you further insights into what your subconscious is processing regarding your relationship and your past. It may be a good time to reflect on how your past influences your present and how you can bring positive aspects from your childhood into your current life.