“The Word of God may be likened unto a sapling, whose roots have been implanted in the hearts of men.”: - one needs to “foster its growth”

Incline your hearts, O people of God, unto the counsels of your true, your incomparable Friend. The Word of God may be likened unto a sapling, whose roots have been implanted in the hearts of men. It is incumbent upon you to foster its growth through the living waters of wisdom, of sanctified and holy words, so that its root may become firmly fixed and its branches may spread out as high as the heavens and beyond. 

- Baha'u'llah  ('Gleanings from the Writings of Baha'u'llah')