Not beneficial … FAMILIAR … and also those who’s character strategy will reinforce something about ourselves or the world that we ALREADY believe.
Your unconscious is always scanning to get it’s needs met. It’s also working to preserve stability (homeostasis of self & world). As soon as you spot someone and become attracted to them, its a solid bet that they fit with some unconscious need or strategy you have running on automatic.
An introspection practice (meditation, therapy, hypnosis, yoga, katsugen) is the best way to discover what these forces really are.
Dewey Gaedcke’s answer to What are the symptoms of PTSD?