Dreams involving mirrors often symbolize self-reflection and self-image, while the presence of alien-like tentacles and slug-like creatures can represent feelings of being overwhelmed or a sense of losing control in some aspect of your life.

The tentacles might suggest that you feel entangled in a situation or relationship that is foreign to you, perhaps indicating a fear of invasion of your personal space or boundaries. The purple color could symbolize creativity, but it can also reflect feelings of confusion or anxiety.

The uncontrollable nature of the slugs falling from your mouth may indicate repressed emotions or thoughts that you find difficult to express. You might be struggling with feelings that you want to release but are unsure how to do so.

Consider what areas of your life might feel overwhelming or where you may be holding back your true feelings. This dream could be prompting you to communicate more openly or to address issues that you have been avoiding. Reflect on your current circumstances and see if there are any connections to these themes.