You must continue to keep the Nineteen Day Feast. It is very important; it is very good. But when you present yourselves in the meetings, before entering them, free yourselves from all that you have in your heart, free your thoughts and your minds from all else save God, and speak to your heart. That all may make this a gathering of love, make it the cause of illumination, make it a gathering of attraction of the hearts, surround this gathering with the Lights of the Supreme Concourse, so that you may be gathered together with the utmost love.
O God! Dispel all those elements which are the cause of discord, and prepare for us all those things which are the cause of unity and accord! O God! Descend upon us Heavenly Fragrance and change this gathering into a gathering of Heaven! Grant to us every benefit and every food. Prepare for us the Food of Love! Give to us the Food of Knowledge! Bestow upon us the Food of Heavenly Illumination!
In your hearts remember these things, and then enter the Unity Feast. (‘Abdu’l-Baha, The Compilation of Compilations vol. I, p. 429)