The restoration of the catechumenate in the Roman Catholic tradition since the promulgation of the Rite of Christian Initiation of Adults (RCIA) in 1972 has been a most surprising pastoral success. Given its size and complexity one might have predicted that the RCIA would simply be ignored or dismissed as irrelevant.
Lewinski, Ronald J., "Recovering the Spirit of Mystagogy in the Contemporary Churches" (1988). Institute of Liturgical Studies Occasional Papers. Paper 37.