Reunion in Crisis

This dream is rich with symbols and feelings that may reflect your current emotional state, relationships, or concerns in waking life. Here is a detailed interpretation of the elements you mentioned:

1. Being a Train Operator: Driving a train can symbolize being in control of life's direction or being responsible for others. It highlights your feelings about the path you are on in life, your job, or your responsibilities.

2. The Accident: Dreaming of an accident can indicate fear of losing control, anxiety about future events, or worries about a potential failure. It often represents a wake-up call or a signal to reassess your current path or decisions.

3. Falling into Grass: Falling into grass suggests a return to nature or getting grounded. Grass is soothing, soft, and indicative of being cushioned against hard realities. This might mean that although things seem bad, you have support and are not 'falling flat.'

4. Ex-Girlfriend Coming to Save You: This aspect of the dream could reflect unresolved feelings or thoughts about reassurance and care that she once provided. It may not mean you wish for a reunion but rather seek the comfort she represents or a similar role in your current life.

5. Being in Ambulance with Her: An ambulance suggests healing and urgent attention to emotional or physical issues. Her presence shows that you may subconsciously desire care and support during challenging times.

6. Father and Brother with Backs Turned: This element might symbolize feelings of being unsupported or unnoticed by key male figures in your life. Their turned backs suggest a lack of communication or an emotional distance you might be struggling with.

7. Invisible Faces: Not seeing their faces may signify that you are unsure about how they truly feel about you or your decisions. It’s about uncertainty in your relationships or ambiguity about their roles in your life.

Overall Interpretation: This dream seems to convey stress about control and responsibility in your life, with underlying emotions tied to past relationships and family dynamics. There's a longing for support and reassurance, yet a feeling of isolation or disconnect from male family members. Reflection on these relationships and feelings might be beneficial, and perhaps seeking similar reassurance or support from other areas of your life can be helpful. This dream could prompt you to engage in conversation with your family or address any unresolved feelings with past relationships, particularly where support and recognition are concerned.