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The question I am always asked is ...When a person deliberately and maliciously intends harm to another what is the recourse? What happens to that unkind person? I found this response on a spiritual network that answered this far better than I ever could.
It is from a spirit guide.
In the whole environment of manifestation the ying and yang of experience occurs continuously. Those who participate in a negative fashion will + shall ultimately evolve to a more positive position.
The balance between good + evil exists singularly and vastly in all experiences. Each soul/entity seeks to understand all aspects of existence.
Currently this negative individual is highly involved with negative perspective. Her soul is seeking balance but is finding it hard to do so. In this life she may not be successful. However, be assured that she will seek you out in another moment to make restitution for her negativity this time.
Send her positive energy even if you feel slighted by the encounter. She is not getting away with anything in the big picture. It is her lack of self that propels her to act in this fashion. It continues as her thirst for connection eludes her throughout her negativity. She suffers more than you know. You only see the illusion of the environment she has created. The balance pursues her and it is not pleasant.