… from PaGaian Cosmology Lammas/Late Summer ceremony:

“Breathe this breath that is yours, as if it were your first … do you remember that it was so? Breathe this breath that is yours, as if it were your last … do you remember that it will be so? Breathe it now, this breath that is yours … but not yours. We breathe this breath together (take hands) … we are the breath of the Cosmos in this time and in this place – Her breath-taking manifestation, in this Moment of Her story.” (let go hands)

The full Lammas ceremonial script from which this is an excerpt is offered in Chapter 7 PaGaian Cosmology

And further: a Lammas meditation which includes this breath meditation is offered at this link (scroll down to the individual tracks).