It is impossible to change the consciousness and life of a person in a couple of sessions. Οnly a Master/Guru, can potentially change a man's life, but even with a Great Guru a man has to be ready for this. It is, however, a well-known fact that a man can change greatly, even against his own wishes, when he finds himself in a new environment, for instance, in a spiritual group. In all other cases, he is a slave of his surroundings and of his social background. If a child grows up with animals, he will become like an animal not a human being. This is why the solution lies in founding spiritual groups & communities and, later, for instance, an ashram, whose structure is based on esoteric knowledge.
A community of spiritual people and healers becomes an Egregor which though must be truly spiritually connected with the Absolute, with the Divine Power. This group will possess the true methods of healing that can put the principles of spiritual healing into practice and create the right terms for purification and real changes in people's lives and consciousness. Remember that in the Gospels Christ healed people, but could not heal them all. It was only later when the Apostles began to build churches and conveyed knowledge through the Holy Spirit that many more people were being healed and "saved" from sufferings.
When communities & ashrams are created under the true principles then, there, people will be able to open their eyes and go out of the blind state of ignorance and cure many diseases (although this may not immediately happen in a miraculous fashion but, in most of the cases, in a step by step process). Buddha also spoke of the three precious conditions: Guru, Knowledge and the Spiritual Community. In the world, in the majority of cases we already have the first two and are now ready to achieve also the third condition. The Holy Spirit gives to each human different abilities: clairvoyance, the gift of healing, hypnosis. Each and every disciple shall have to study their field of competence, whether it is therapy with plants, acupuncture, healing yoga, shamanic healing or energy healing because it is very difficult to study each field well. The Egregors and the Ashrams will give you the sacred knowledge and will protect its devotees. Only through the Egregor we can obtain important knowledge and receive the blessings of the Divine Power. If you are ready in your heart you can become Mentors and Healers in the world. Om!