September 20

Consolidation is as vital a part of the teaching work as expansion. It is that aspect of teaching which assists the believers to deepen their knowledge and understanding of the Teachings, and fans the flame of their devotion to Baha'u'llah and His Cause, so that they will, of their own volition, continue the process of their spiritual development, promote the teaching work, and strengthen the functioning of their administrative institutions. Proper consolidation is essential to the preservation of the spiritual health of the community, to the protection of its interests, to the upholding of its good name, and ultimately to the continuation of the work of expansion itself.

….

Consolidation activities promote the individual spiritual development of the friends, help to unite and strengthen Baha'i community life, establish new social patterns for the friends, and stimulate the teaching work. 

- The Universal House of Justice  (From a message dated April 17, 1981 written on behalf of the Universal House of Justice to all National Spiritual Assemblies; ‘Messages from the Universal House of Justice 1963-1986’)