Nam-Myoho-Renge-Kyo is like the roar of a lion, what sickness can therefore be an obstacle.
This time when I read this very same passage again, it has another, more significant, meaning to me. In Buddhism, Lion or "shiji" in Chinese carries the meaning of the spirit of Mentor & Disciple. So, when I revisited the passage again, to chant the lion's roar-like daimoku, it means to me the daimoku of Mentor & Disciple. It now means more than a daimoku that is so strong that will dispel all sickness but a daimoku that is same as our mentor's. It has to be the daimoku for the happiness of ourselves & others, the daimoku of peace, the daimoku of victory, the daimoku for humanity & the daimoku for kosen-rufu. I do not think my previous daimoku of personal victory, personal fortune, personal relationship, personal wealth, personal this & personal that is in sync with my mentor! How shameful!
So, I reckon in order to dispel all sickness (not necessarily health sickness, can be problems we faced in life), I have to start chant like Sensei! In fact, this Mentor & Disciple spirit is the whole gist of Buddhism. Then I can proudly say:
Nam-Myoho-Renge-Kyo is like the roar of a lion, what sickness can therefore be an obstacle!