Dreaming about killing a spider
What does it mean to kill a spider in a dream?
You act, and the threat ends. Reports of this version split on the aftermath rather than the act: a substantial number describe regret, which surprises people.
That split is the interesting part. The same dreamer can feel relief one night and guilt another, from an almost identical dream, which is a useful demonstration that the emotion is not determined by the content.
Dictionaries that read killing as "overcoming an obstacle" are picking one of the two reported reactions and printing it as the meaning.
Where this reads well
A dream where you act decisively is worth noticing, whatever the object was.
Where it is harder
If you woke feeling guilty, that is a real and common response. It does not need explaining away.
Worth asking yourself
How did I feel immediately afterwards? Did I want to?
Dream interpretation is subjective. Nothing here is a diagnosis, a prediction, or medical advice.
Sources and reviewed references
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