“In a rich soil, its plants spring forth abundantly by permission of its Lord, and in that soil which is bad, they spring forth but scantily.”

"O my brother! A divine Mine only can yield the gems of divine knowledge, and the fragrance of the mystic Flower can be inhaled only in the ideal Garden, and the lilies of ancient wisdom can blossom nowhere except in the city of a stainless heart. “In a rich soil, its plants spring forth abundantly by permission of its Lord, and in that soil which is bad, they spring forth but scantily.” 31"

-Bahá'u'lláh, The Kitáb-i-Íqán, p. 191


31. Qur’án 7:57.