This dream is rich with symbolism and can be interpreted in various ways.

1. Library: Libraries often represent knowledge, learning, and the exploration of the self. The massive library could indicate your desire for growth and understanding, or perhaps it signifies a journey into your subconscious to uncover hidden aspects of yourself.
2. Book with moving pictures: This element suggests a connection to your past and memories. It may symbolize how you perceive your life journey and experiences, possibly highlighting moments of joy, struggle, or change.
3. Ink flooding the library: Ink can represent creativity, emotions, or communication. The flooding might symbolize overwhelming feelings or experiences that you are currently navigating. It could also suggest a fear of losing control over your thoughts or emotions.
4. Climbing the shelf/staircase: This action indicates a desire to rise above challenges and gain new perspectives. The transformation of the shelf into a staircase suggests that you are finding ways to elevate yourself despite difficulties.
5. Grassy hill under a dual sky: This imagery represents a balance between opposites—day and night symbolize clarity and confusion, or consciousness and the subconscious. It could indicate that you are in a transitional phase, seeking harmony in conflicting aspects of your life.
6. Ink turning into glowing butterflies: Butterflies are often symbols of transformation, freedom, and beauty. The ink transforming into butterflies could represent your ability to turn challenging emotions into something beautiful and uplifting. The feeling of relief suggests that you are finding peace and resolution after confronting these emotions.

Overall, this dream reflects a journey of self-discovery, emotional transformation, and the quest for balance in your life. Consider what aspects of your life may require introspection or change, and embrace the journey as you continue to grow.