From it's beginnings, Guiding has always been multi-faith, and many units have been 'open' - accepting any girls in the locality who felt able to take on the commitment of making the Promise, regardless of what religious background if any. But because belief formed part of the Promise, it was necessary to have an appropriate point in the schedule, at meetings or at camps, for the Guides to thing about and consider their beliefs.
Hence, the 'Guides' Own'. Their own act of reflection. With no clergy of any sort involved, the Guides themselves chose readings, stories, ceremonies or songs which they considered to be meaningful, often around a chosen theme.
Over the years, Guiding has published a number of books to provide helpful material for use at Guides' Owns, often drawn from a wide range of cultures and religions, and offering universal thoughts and ideas.