In our daily life a certain way of thinking makes us happy, and a certain way of thinking makes us unhappy. In other words, there are certain states of mind which bring us problems, and they can be removed.
The ancestor of every action is thought; when we understand that we begin to comprehend that our world is governed by thought and that everything without had its counterpart originally within the mind.
Elinor was to be the comforter of others in her own distresses, no less than in theirs; and all the comfort that could be given by assurances of her own composure of mind, and a very earnest vindication of Edward from every charge but of imprudence, was readily offered.
if a person wishes to achieve peace of mind and happiness then they should acquire faith, but if they want to be a disciple of truth, which can be "frightening and ugly,” then they need to search.