Your dream encompasses a rich tapestry of themes, symbols, and experiences that may reflect your subconscious thoughts and feelings.

1. Mother's Room and Spiritual Books: The setting of your mother's room and the empty closet filled with books on out-of-body experiences (OBEs) and spirituality could symbolize a search for deeper understanding or enlightenment. The fact that you "forgot" about these books may indicate that you have untapped knowledge or interests in spiritual matters that you have yet to explore.
2. The Wand and Spell Casting: Practicing spells with a wand can represent your desire for control over your life or situations. The specific spells you mentioned, like "Wingardium Leviosa" and "Lumos," suggest a yearning to elevate your circumstances and bring light into your life. The struggle with heavier objects might denote challenges you face and your need for practice and perseverance to overcome them.
3. Flying Over the Sea: Flying is often associated with freedom, aspiration, and the ability to rise above problems. The imagery of flamingos could symbolize grace and beauty, suggesting that you are navigating through a transition in your life and seeking new experiences. The island resort could represent a desire for relaxation, escape, or self-discovery.
4. Hair Transformation: The second part of your dream, involving hair dyeing, often symbolizes change or transformation in your identity. The regret over bleaching your hair may reflect concerns about the consequences of your choices or changes in your life. However, feeling fine about the blue color indicates an acceptance of these changes and a celebration of your individuality.
5. Encounter with Notable Figures: Meeting public figures like Mohammed bin Zayed could signify aspirations or recognition in your life. It might reflect your thoughts about leadership, influence, or even your own ambitions.

Overall, your dreams suggest a journey of self-discovery, transformation, and a quest for knowledge. They highlight a desire to gain control over your life while embracing change and exploring your identity. It may be beneficial to reflect on your current life circumstances, aspirations, and areas where you seek growth or understanding. Consider journaling your thoughts or actively engaging in the spiritual interests that appeared in your dream.