Your dream contains several rich symbols and scenarios that can offer insights into your current feelings and life situation.

1. City Expansion and Construction: The expanding city of Phoenix and the new high-rise buildings could symbolize growth and change in your life. This might reflect your own ambitions or desires to build something new, whether it be personal goals, relationships, or career aspirations. The fact that the buildings are being constructed at the edge of the city, rather than filling in existing gaps, could suggest a desire to explore new opportunities rather than just enhancing what already exists in your life. This might also hint at feelings of uncertainty regarding where you are headed, as you ponder where the land for these new developments came from.
2. Picnicking with Friends and Community Figures: The picnic scene with George's friends and the Mayor suggests a social aspect of your life, possibly highlighting relationships and community involvement. Seeing the Mayor could reflect your feelings about leadership and community engagement. It might indicate a desire to be more connected to local events or an acknowledgment of the role these connections play in your life. The contrast of the picnic locations could symbolize differing perspectives or social circles in your life.
3. Encounter with the Mother and Children: The interaction with the single mother and her children may represent your feelings towards family, care, or even compassion for those who are different or face challenges. The boy's behavior might signify an exploration of understanding and acceptance of diversity in abilities and personalities. Your response to the mother’s apology and your refusal of the candy could indicate your awareness of boundaries and your comfort in handling uncomfortable social situations.
4. Sky-Bridge and Seasonal Changes: The imagery of walking through a glass-walled sky-bridge symbolizes transition and clarity, as well as a bridge between different aspects of your life. The fallen leaves could signify a period of change or letting go, perhaps relating to the need to move on from something that no longer serves you.

Overall, this dream may be encouraging you to embrace change and growth while fostering compassion and understanding in your interactions. It could also be a reminder to reflect on your social connections and consider how they contribute to your sense of community and belonging. Embrace the new opportunities that may be on the horizon while remaining grounded in your values and relationships.