Principal English Translation:
the chamber(s) of the heart (see Sahagún); the house of the heart
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 77.
Attestations from sources in English:
The Yollocalli Youth Museum, an initiative of the National Museum of Mexican Art, defines yollocalli as "house of the heart."
See http://yollocalli.org/, accessed 7 Dec. 2012.
moiollocaltitlan = in the chambers of thy heart (central Mexico, sixteenth century)
Fr. Bernardino de Sahagún, Florentine Codex: General History of the Things of New Spain; Book 6 -- Rhetoric and Moral Philosophy, No. 14, Part 7, eds. and transl. Arthur J. O. Anderson and Charles E. Dibble (Santa Fe and Salt Lake City: School of American Research and the University of Utah, 1961), 77.