Yes, no joke, you can pray in Esperanto language.
Most of the major religions in the world have the Esperanto language group for international communications.
Since the birth of Esperanto in 1887. Many religious leaders realised for international communications, they need a simple learning language and the most of it is the neutrality of the language.
There is even a religion which began using Esperanto as the main language of its texts for prayer. This religion is called Oomoto and now has spread across the globe. There is an English version of a short film about it.
The Catholic church in the Vatican broadcast in Esperanto daily. The protestants have Esperanto congress yearly. Buddhism in particular the triangle meet, China, Korea and Japan, is held in rotation each year:
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Recently, the monk in China, Miao Hui was interviewed by an American in Esperanto. Certainly, Buddhism in China is like the Esperanto Commerce group, taking up the major place. If you don’t understand Esperanto, watch it with the English subtitle.
It is Islam has yet to organise the International meet despite Iran being the first country to use Esperanto Quran and later discarded it due to some internal problems.
I do not wish to write too long for this article. If the readers from the related religious sectors like to know how Esperanto is good for their followers they can click the links below and contact their respective organisations for more information.
The organisation , not the full list, is based on the alphabetical order but with no other intention.
Baha’i Faith in Esperanto
Buddhism in Esperanto
Catholic in Esperanto
Islamic Esperanto Quran for download
Esperanto Bibles in Old and New Testaments