Otiyyot and breath
Throat — letter, voice, and breath locus
The throat is used as the vocal-breath threshold where Hebrew letters, voiced breath, and prayerful utterance become operative in the ascent practice represented by this diagram. Sefer Yetzirah's letter-and-breath account supports the symbolic linkage, while the exact throat coordinate remains an editorial projection rather than a textual somatic prescription.
Point 3 of 7 in Merkabah — Light Vehicle of Ascent
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Sefer Yetzirah (Book of Formation) (secondary_translation)
Hekhalot Rabbati (Hekhalot Rabbatai) (primary_canonical)
Hekhalot ascent liturgies are built on recited divine names (letter-mysticism shared with Sefer Yetzirah traditions); the throat locus marks recitation (cf. synopse §§ 254-259, name-recitation instructions).