Authors:

Discipline enabled Heaven to be filled with light; discipline enabled the angels to be immaculate and holy.

Jalāl al-Dīn Rūmī (Maulana), Jelaluddin Rumi, Kabir Helminski, Andrew Harvey (2005). “The Rumi Collection: An Anthology of Translations of Mevlâna Jalâluddin Rumi”, p.21, Shambhala Publications
Discipline enabled Heaven to be filled with light; discipline enabled the angels to be immaculate and holy.