In the Sutta Pitaka are at least 3 discourses on the 7 Enlightenment Factors ( Satta bojjhaṅgā ) that directly relate to this topic. They can be also found in the “Book of Protection, Paritta, a Buddhist classic, compiled by the Sri-Lankan Buddhist elders many centuries ago.
Q1: Do you know what do the Ancient commentaries say about these discourses, what ills did the elders suffer from?
Q2: Can you explain how the healing by reciting those discourses actually works?
Q3: What is the difference between the energy as an enlightenment factor (Viryia) and the energy of the Compassionate-love?