LETTERS OF THE LUBAVITCHER REBBE
In reference to your writing about doubts and the difficulty of making decisions, and about a general feeling of insecurity: It is unnecessary to elaborate to you at length that such feelings arise when a person thinks that he is alone and can only rely upon himself and his own judgment, and therefore feels doubtful and insecure about each move he has to make.
And while he also trusts in G-d, this trust is somehow superficial, without permeating him and his way of life in every detail. And [when it does, it does so] only on certain days, such as the High Holy Days, [when] he feels closer to G-d.
But when a person's faith in G-d is deep, and when he reflects that G-d's benevolent providence extends to each and every person, one develops a profound sense of security and confidence...
... A Jew can attain internal and external harmony only by living life as he or she is supposed to live it. If, for whatever reason, one's daily conduct and life are not as they should be, this disturbs the person's harmony and creates a feeling of restlessness, insecurity, etc.
Sometimes this feeling rises unconsciously. And sometimes, as you mention in your letter, it comes as a result of having a troubled conscience, all the more so since there is a special Jewish conscience over and above the general human conscience that is common to all decent human beings, Jews and non-Jews alike.
