ᚂ Luis — rowan / nerves
Protection and the nervous system
Luis is the rowan letter and is commonly given protective force in modern neo-pagan practice, with the nerves as its body correspondence. It is placed on the upper neural axis as a symbolic projection; the manuscript lists do not establish this organ assignment.
Point 2 of 15 in Celtic Ogham — tree-letter body correspondences
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Book of Ballymote (primary_canonical)
Supports the Luis/rowan letter tradition, not a nervous-system chart.
Damian McManus, A Guide to Ogam (scholarly_modern)
Controls the letter reading; protection/nerves is a modern correspondence.