Rūḥ
Spirit — under the right breast
Rūḥ, the spirit-latifa, two finger-widths beneath the right breast. Its light is red; it is associated with the prophets Noah and Abraham. Sirhindī treats it as the next station after qalb: where qalb yields love and faith, rūḥ yields ḥuḍūr — presence — and a steadier register of divine cognition. Classical theology distinguishes rūḥ (spirit, the divine breath of Q. 15:29) from nafs (the lower self). The latifa of rūḥ is the locus where this distinction becomes experientially obvious.
Point 2 of 6 in Lataif al-Sitta (Six Subtle Centers)
Cross-tradition overlaps
No overlapping points are registered for this point.
Sources
Sirhindī, Maktūbāt I.234 (primary_canonical)
Maktūbāt I.234 (First Daftar, Letter 234) treats rūḥ as a distinct latifa in the Mujaddidi subtle-body scheme and places it beneath the right breast. The red light and prophetic correspondence belong to this Sufi phenomenological map, not to Qur'an 15:29's physical description.
Buehler, Sufi Heirs of the Prophet, ch. 4 (secondary)