Magical Synesthesia

Magical Synesthesia is the broad term representing how organisms detect Magic. Each person detects magic slightly differently. The effect can range through almost any sense and also to other effects such as emotional or mental alterations or even physical alterations, though these are uncommon.
The kinds of effects one experiences often correlate to those related to you. This is not guaranteed, as about 1 in 20 children have entirely different experiences. Among parents who have non-sensory effects this rate of diversion increases to about 1 in 5.
The majority of people have Sensory Synesthesia, though there are some groups that are dominated by Non-Sensory Synesthesia, such as the Komanshei, who are dominated by an Emotive Synesthesia.
Magical Synesthesia can also induce physical changes, however, this is incredibly rare in common people, less than 1 in a million. It is surprisingly common among the partially mortal children of Angels and Demons, half-breeds. They often have two effects, one physical, one sensory, though this isn't always the case. The rate is hard to pin down, but seems that about 1 in 3 half-breeds have have Physical Effects and of that third, roughly 4 in 5 have a secondary sensory effect as well.
Most Synesthesia is a neutral experience, but some are positive or negative, and in very rare cases it can verge on debilitating. In extreme cases, Synesthesia is experienced as some form of pain. Though most are merely unpleasant like bad smells, or feelings of illness, tingling like numbness, or strange sounds. More positive experiences are described as pleasant, such as a sweet smell, a good taste, a harmonious note, or the like. The extremely positive experiences are often seen as just as debilitating as they often create addictive dependency. The most famous example of an excessively positive result is Leisa Ketrasha, who views using magic and sexual gratification as entirely the same.
There are a few cases where someone's Magic Synesthesia has changed, but there is no known method to consistently and safely produce this change. Most cases of changing Synesthesia involve violent and near fatal brain damage that was unable to be fully healed, and as such the process is only considered in the most extreme cases.

Known Manifestations

Sensory Manifestations

• Gwenifreya Llaeanne and Maeve Llaeanne, Detects magic as a tingling, electric sensation which grows stronger the closer the body part is to the source. Not unpleasant. Inherited from her Mother.
• Saphira Spheer, Detects magic like Tinnitus, though instead of an atonal high pitch, she describes it as a pleasant ring, like that of a bell. She can use this to discover the general direction of magic, though it's accuracy is very low.
• Maria Anat, Detects magic as a salty taste. She's unable to detect direction but is quite accurate at detecting strength.

Emotive Manifestations

• Leisa Ketrasha, detecting mana evokes sexual pleasure from her. If detected for long enough or in a high enough amount, this may lead to climax.

Physical Manifestations

• Hector Half-Breed, Detects mana through a physical change in his body. His skin tone changes to be brighter, his hair more red, and eyes amber as he detects large quantities of mana. As his natural quantity of mana is already high and the alternative color scheme is body takes on is related to his Demonic Heritage, he can control this to some degree. Because of the non-sensory nature of his detection, he has learned how to sense magic by other means.

Type

Metaphysical, Arcane