When both the head and heart line merge into one that is called simian LINE many people may have partial time of simian line. In some cases a person might have a small heart line apart from the main Simian line it could be vice versa as well Few people have it. Maybe .00001% of population. What is rare need not be good or bad. It just makes one with rare personality. It means no playing ground for thought process and feeling to play on. It makes them one sided.
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