Does this mean that those Baha'i who are truly obedient to the Covenant never suffer any form of calamity... disease and such, that result from natural causes, as opposed to the deliberate action of others?
Shoghi Effendi has als provided the answers to thay question Niblo.
"In such a process of purgation, when all humanity is in the throes of dire suffering, the Bahá’ís should not hope to remain unaffected. Should we consider the beam that is in our own eye, we would immediately find that these sufferings are also meant for ourselves, who claimed to have attained. Such world crisis is necessary to awaken us to the importance of our duty and the carrying on of our task. Suffering will increase our energy in setting before humanity the road to salvation, it will move us from our repose for we are far from doing our best in teaching the Cause and conveying the Message with which we have been entrusted…."
(From a letter written on behalf of Shoghi Effendi to an individual believer in reply to a letter dated October 14, 1931: Bahá’í News, No. 58, January 1932, p. 1)
This answer is how I approach life, I see we, as the human race, are an organic unit.
"… When such a crisis sweeps over the world no person should hope to remain intact. We belong to an organic unit and when one part of the organism suffers all the rest of the body will feel its consequence. This is in fact the reason why Bahá’u’lláh calls our attention to the unity of mankind. But as Bahá’ís we should not let such hardship weaken our hope in the future…."
(From a letter written on behalf of Shoghi Effendi to a Bahá’í family, April 14, 1932)
When the body of humanity is sick, it needs the divine elixir and Baha'u'llah offered.
"The All-Knowing Physician hath His finger on the pulse of mankind. He perceiveth the disease, and prescribeth, in His unerring wisdom, the remedy. Every age hath its own problem, and every soul its particular aspiration."
@RJM provided a good answer, which I see lays in submission unto God.
Regards Tony