April 20

These Spiritual Assemblies are aided by the Spirit of God. Their defender is ‘Abdu’l-Bahá. Over them He spreadeth His wings. What bounty is there greater than this? These Spiritual Assemblies are shining lamps and heavenly gardens, from which the fragrances of holiness are diffused over all regions, and the lights of knowledge are shed abroad over all created things. From them the spirit of life streameth in every direction. They, indeed, are the potent sources of the progress of man, at all times and under all conditions. What bounty is there greater than this? 
(‘Abdu’l-Baha, ‘Selections from the Writings of ‘Abdu’l-Baha’)