A questionnaire was sent to 578 BACP Accredited Counsellors and 122 CMCS Approved Counsellors to survey the use, and attitudes to the use, of prayer as a spiritual intervention in British mainstream counselling. The data reveal that prayer influences the practice of a significant number of mainstream counsellors at a philosophical, a covert and an overt level. More research needs to be conducted into the value and limitations of this phenomenon.