Historically, these texts were oral transmissions from the movement's initiators, Kiko Argüello and Carmen Hernández, transcribed into thick, informal volumes (hence the Spanish nickname mamotretos , or "bulky books"). For decades, they were kept secret from the public and even from regular members, which led to significant controversy regarding their theological content. Critics often raised concerns about:
The Neocatechumenal Way is a gift to the Church, but like any living movement, it requires discipline. The Mamotreto is not a magical talisman; it is a designed to transform the heart through the memorization of Scripture and liturgy.
Having a verified edition ensures that the nuances of the "tripod" (Word, Liturgy, Community) are preserved without the errors common in unofficial transcriptions.