I would vanish to Valaam Monastery or somewhere on Athos to chant the Orthodox liturgy all day in a heartbeat. Likely the same, if an opportunity came up to be an Anglican cleric in minor orders at some cathedral in the cold north of Britain. This despite not knowing Russian, having only yeoman's koine Greek, and being rather firmly on the Catholic side of the Catholic/Anglican split in the English-speaking world.
It's the possible and likely things that prove difficult.