This dream is rich with symbolism and emotional undertones, reflecting various aspects of your life and feelings. Here's a breakdown of some key elements and their possible interpretations:

1. Driving with Loved Ones: The journey with Zach and Carlee signifies your current relationships and the support system you have. It suggests a desire to connect and share experiences with those you care about.
2. Encounter with Sam: The presence of your ex, Sam, and your feelings towards him might indicate unresolved emotions or a need for closure. His reluctance to engage with you in the dream may symbolize your feelings of rejection or disappointment in that relationship.
3. Different Rooms and Activities: The various groups and activities happening in the house represent different aspects of your life or social circles. The juxtaposition of carefree behavior (people napping and smoking) against the wedding preparations might indicate a conflict between your desires for freedom and commitment.
4. Caring for Your Kids: The scenes involving your children suggest a strong sense of responsibility and the challenges you face in parenting. The struggles you encounter, like trying to strap them in or dealing with negative comments from others, may reflect your fears and frustrations about being a parent.
5. Conflict and Anger: Your outburst towards the woman watching your kids signifies pent-up frustration and perhaps feelings of inadequacy or judgment from others. This could indicate a need to assert yourself more in your waking life.
6. Spiritual Themes: The imagery of the man flipping coins and the symbolism of the messiah's return points to deeper existential questions or spiritual concerns you may be grappling with. You might be seeking guidance or looking for meaning in your experiences.
7. Helping in Labor: Assisting with the childbirth can symbolize nurturing and the desire to help others. It reflects your capability and willingness to support those in need, indicating a strong sense of empathy.
8. Realization of Humanity: The final realization that the man is just a normal guy despite his psychic abilities may reflect your understanding that everyone has their struggles, and no one is perfect. This could indicate a desire for authenticity in your relationships.

Overall, your dream seems to reflect a complex interplay of relationships, responsibilities, and a search for connection and meaning. It may be beneficial to reflect on your feelings towards these various elements in your life and consider what changes or actions you might want to take moving forward.