え
E — heart / centre focus
The kana え is the requested E focus, positioned over the heart region as the menu's central fire/organ association. The vowel belongs to the documented modern sound practice; the heart projection is an editorial attention aid, not a textually attested Kototama organ seat.
Point 4 of 9 in Kototama Sound Body — A-I-U-E-O vowel foci
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Masahilo M. Nakazono, The Source of Present-Day Civilization (scholarly_modern)
Modern Kototama source for the vowel/sound-rhythm system; it does not independently establish this centre coordinate.
Kototama Sound Practice as taught by M.M. Nakazono (secondary)
Identifies E as one of the five Mother/Half-Mother vowel sounds.