Some say that all the hearings taking place in conventions and retreat centres, are mere phantasies. Is it true?
No, there may be some cases where the disease is only imaginary and hence the healing also may be imaginary. However, there are many recoveries from real diseases emanating from physical and psychic disorder. Children are born to couples who had none since many years, the deaf hear, the dumb speak and the possessed are liberated. Jesus gave Apostles the power to "heal the sick cleanse the lepers, raise the dead, cast out demons" (Mt. 10:8). This power is transferred to the Church, and those in the Church specially gifted for this (1 Cor. 12:9) use this freely (Mt. 10:8) for the building up of the community.