What are Baha'i Training Institutes meant for?

As the term "institute" has assumed various uses in the Bahá'í community, a word of clarification is needed. The next four years will represent an extraordinary period in the history of our Faith, a turning point of epochal magnitude. What the friends throughout the world are now being asked to do is to commit themselves, their material resources, their abilities and their time to the development of a network of training institutes on a scale never before attempted. These centres of Bahá'í learning will have as their goal one very practical outcome, namely, the raising up of large numbers of believers who are trained to foster and facilitate the process of entry by troops with efficiency and love. 

http://bahai-library.com/uhj_ridvan_1996