In mutli-faith gatherings Baha'is should attract others to Baha'ism."In some places the Bahá’ís have held meetings for prayer, for people who desire to meet and pray. As we have such wonderful prayers and meditations in our writings, the reading of these with friends who are interested in and crave for this type of small meeting is often a step towards attracting them to the Faith. Perhaps you can start such an activity in your city."
(From a letter written on behalf of the Guardian to an individual believer, February 4, 1956: Bahá’í Meetings, a compilation of the Universal House of Justice, November 1975)