This dream appears to touch on several themes, including family dynamics, responsibility, and emotional connection. Here’s a breakdown of some key elements:

1. Mountains and Camping: Being in the mountains often symbolizes a journey or challenge in your life. Camping can represent a return to simpler times or a need for grounding and reconnection with nature. Since you were teaching your family about camping, it might indicate a desire to guide or support them in unfamiliar situations.
2. Gasoline or Lighter Fluid: The presence of these flammable substances could represent anxiety or fear about something in your waking life that feels volatile or out of control. This might symbolize your concerns about safety or the potential for conflict within your family dynamics.
3. Family Dynamics: Your brother going missing could symbolize feelings of loss or worry about your family’s well-being. It may also reflect a sense of responsibility you feel toward your family, especially regarding their emotional states.
4. Emotional Bonding: The sight of your dad and older brother crying together despite their usual emotional distance suggests a breakthrough in their relationship. This could signify a wish for deeper connections within your family or a recognition that vulnerability can lead to stronger bonds.
5. Yellow Teletubby and Lollipop: The Teletubby is often associated with childhood innocence and joy. Receiving a lollipop might represent a desire for comfort or relief amidst the stress of your dream. It could also signify that despite the challenges, there is still room for playfulness and light-heartedness.

Overall, this dream seems to be highlighting the importance of family connections, emotional expression, and navigating challenges together. It might be helpful to reflect on your own feelings about family relationships and consider how you can foster communication and support among your loved ones.