Dreaming of being in outer space often symbolizes feelings of isolation, exploration, or a sense of being overwhelmed by vast possibilities or uncertainties in your life. The presence of your mother in the dream may represent a need for support or guidance during these times of exploration or challenges.

The empty container you dropped could represent feelings of emptiness or a lack of fulfillment in some area of your life. The fact that it was sucked into space quickly might suggest you feel like opportunities or aspects of your life are slipping away too fast. Your mother's warning about getting sucked in could reflect concerns about being drawn into situations that may be risky or unfulfilling.

Overall, this dream might be prompting you to consider how you handle feelings of isolation and whether you are taking care of your emotional well-being. It could also encourage you to seek support from loved ones, especially during times of uncertainty. Reflect on what areas of your life feel overwhelming or empty, and think about how you might address these feelings constructively.