Your dream is rich with symbolism and emotional undertones. Here are some interpretations of the key elements:

1. Hotel: Staying in a hotel often symbolizes a temporary state or transition in your life. It may reflect feelings of being out of your comfort zone or exploring new aspects of yourself.
2. Getting Lost: This may indicate feelings of confusion or uncertainty in your waking life. You might be facing a situation where you feel directionless or unsure about how to move forward.
3. Handheld Telescope: The telescope can represent a desire for clarity or a broader perspective on your life. It suggests that you might be seeking insight into your situation or trying to 'zoom in' on a particular aspect of your life.
4. Stars and Planets: Noticing celestial bodies often relates to aspirations, hopes, and dreams. It might indicate a longing for guidance or a higher purpose.
5. Old High School Friends: Encountering past acquaintances can symbolize unresolved issues or nostalgia. Their anger may reflect your feelings of guilt or regret regarding past relationships or situations that remain unaddressed.
6. Conflict and Resistance: The aggressive behavior of your friends and their families could represent external pressures you feel in your life. Their attempts to tie you down may symbolize feeling trapped or overwhelmed by responsibilities or expectations.
7. Waking Up: The abrupt end of the dream might mirror a sudden realization or a need to confront something uncomfortable in your waking life.

Advice: Reflect on areas in your life where you feel lost or confused. Consider reaching out to those from your past with whom you feel unresolved issues. It might also be beneficial to seek clarity on your aspirations and what truly matters to you. Engaging in introspective practices, like journaling or meditation, could help you untangle these feelings and gain a clearer perspective.