Theta Healing is a prominent healing method which was created in 1995 by Vianna Stibal during her personal journey of healing from a leg tumor.
According to the official Vianna Stibal ThetaHealing website, this method is a technique of meditation and a spiritual philosophy that is not specific to one religion, but recognizes all of them with the aim to become closer with the Creator. 
This training is meant for the body, mind, and spirit and gives one the ability to get rid of limiting beliefs and live a life full of positive thoughts. This is achieved by shifting the client's brain waves to the theta wave frequency. In this frequency, the unconscious can be docked to modify and overwrite or delete disturbing programs that were stored in the first years of life.   

The client is in a relaxed position and receives instructions from the therapist to enter the theta wave state. Depending on the client's theme, guided healing journeys into the patient's subconscious take place. The patient generates images and feelings that can be changed in collaboration, so that a deep refraiming takes place.  
Clients report feeling relieved, refreshed, rejuvenated and recharged. That their body vibrates, floats and their head has become free. That feelings of love and freedom and deep harmony are felt. Most people do not want to leave this state, which is why we let the clients lie down until they want to get up from the lying position by themselves. 
Reprogramming takes place on the cellular level. Every cell has a consciousness. This state is stored and creates a need for repetition in the user. Thus, sabotage programs have less chance to dominate the body. 
The philosophy of ThetaHealing is to live, train, and coach other people to create a better life through love and harmony in our mind, body, and spirit.