Final answer:
The client is invoking the traditional method of faith healing.
Step-by-step explanation:
The traditional method that the client is invoking is faith healing. Faith healing is a form of healing that relies on spirituality and faith, where the person seeking healing believes that their ailments can be cured through spiritual practices, such as prayer, laying on of hands, or other rituals. This practice is prevalent in various religious traditions, including Christianity, Islam, Buddhism, and shamanic frameworks.