Dreams about spiders can often symbolize feelings of fear, anxiety, or being overwhelmed by a situation in your waking life. The act of walking into a room may represent entering a new phase or aspect of your life.
The spider starting small and then growing larger could suggest that a problem or fear you initially perceived as minor is beginning to feel more significant and intimidating. This may reflect feelings of being trapped or caught in a web of your own thoughts or concerns.
Consider what areas of your life currently feel overwhelming or stressful. It might be beneficial to confront these fears or issues rather than allowing them to grow. Reflecting on what the spider represents to you personally can also provide deeper insights. If you have a specific fear of spiders, this dream may simply be a manifestation of that fear.
Overall, this dream could be urging you to confront your fears head-on, address any overwhelming situations, and find ways to regain control.