August 4

O thou effulgence of the Kingdom! I read thy letter and was informed of thy speech, the contents of which were full of the feelings within thy consciousness, and of thy spiritual sympathies. The light is divided into two kinds, material and spiritual. The material light is a vanishing matter and is known by etheric vibrations. But the spiritual light is the divine, eternal and never-ending quality and is a truth of the Kingdom. Blessed is thy face for that it hath taken a portion and a radiance from that Light. 
- ‘Abdu’l-Baha  (‘Tablets of Abdu’l-Baha, vol. 2)