There is but one power which heals—that is God. The state or condition through which the healing takes place is the confidence of the heart. By some this state is reached through pills, powders, and physicians. By others through hygiene, fasting, and prayer. By others through direct perception.
Abdu'l-BaháThe mind and spirit of man advance when he is tried by suffering. ... so suffering and tribulation free man from the petty affairs of this worldly life until he arrives at a state of complete detachment.
Abdu'l-BaháWe declare that love is the cause of the existence of all phenomena and that the absence of love is the cause of disintegration or non-existence.
Abdu'l-BaháAnd now one of the greatest and most fundamental principles of the Cause of God is to shun and avoid entirely the Covenant-breakers, for they will utterly destroy the Cause of God, exterminate His Law and render of no account all efforts exerted in the past.
Abdu'l-BaháService to humanity is service to God. Let the love and light of the Kingdom radiate through you until all who look upon you shall be illumined by its reflection. Be as stars, brilliant and sparkling in the loftiness of their heavenly station.
Abdu'l-Bahá