Sr Pascale-Dominique Nau 
When God Speaks: Lectio Divina in Saint John of the Cross, the Ladder of Monks and the Rule of Carmel [EPUB ebook] 

Practicing lectio divina. Saint John of the Cross based his teaching of lectio divina on two major sources of spirituality: the Ladder of Monks, Guigo II’s classic on the subject and the Rule of Carmel. From the first he received the structure: reading, meditation, prayer and contemplation, and from the second the conditions and inspiration: 'Each one of you is to stay in his own cell or nearby, meditating the Lord’s law day and night (cf. Psa 1:2; Jos 1:8) and vigilant in prayer (cfr Eph 6:18).’