This dream appears to be rich in symbolism and can be interpreted in several ways.

1. Family and Roots: Being in your family's old house suggests a connection to your past and your roots. It may indicate that you are reflecting on your family dynamics or seeking their approval in your current life choices.
2. Engagement and Relationships: The engagement ceremony you witnessed could symbolize a desire for commitment in your own life or a reflection on relationships around you. Seeing a classmate engaged may prompt you to think about your own relationships and where you stand in that aspect.
3. Desire for Achievement: Purchasing the car you’ve always wanted represents a personal goal or aspiration that you are striving to achieve. It reflects a sense of accomplishment and the importance of your independence.
4. Parental Approval: Your parents reviewing the car and giving their approval indicates a desire for validation in your choices and achievements. This could suggest that you value their opinions and want to make them proud.
5. Strength and Control: The act of lifting the car to turn it around symbolizes your capability and strength to manage your own life and challenges. It may suggest that you feel empowered to take control of your circumstances.
6. Curiosity and Pursuit: Your desire to find out who was engaged reflects curiosity about others' lives and perhaps a longing for connection or understanding of relationships beyond your own.

Overall, this dream may highlight your aspirations, relationships, and the importance of family approval in your life. It could be a prompt to explore your feelings about commitment, independence, and how you perceive your personal growth. Reflecting on these themes in your waking life may provide further clarity and insight into your current situation.

Dreams about family homes often represent your past, your roots, and your sense of security. In your dream, you find yourself in your family's old house, which suggests a connection to your childhood or earlier stages of life. The engagement ceremony you witnessed could symbolize your thoughts about commitment, relationships, or transitions in your own life, especially if your classmate is someone you know well.

The act of buying the car you've always wanted signifies personal achievement and the desire for freedom and independence. Cars often represent our journey in life; your dream may reflect your excitement about new opportunities or changes you are considering.

Your struggle to back the car and ultimately lifting it yourself indicates a strong sense of agency and capability. It suggests that you feel empowered to take control of your own life, facing challenges head-on. This could be a metaphor for overcoming obstacles in your waking life.

The curiosity about the engagement and your attempt to sneak a look can reveal a longing for connection or insight into others’ lives, perhaps reflecting your own feelings about relationships or where you stand in your own emotional journey.

Overall, this dream appears to encapsulate themes of family, personal growth, and the exploration of relationships. It may be an invitation to reflect on your own desires regarding commitment and independence. Consider what aspects of your life you wish to explore further or if there are decisions you feel ready to make as you navigate this phase of your life.