It’s worth pausing here to note that Tolstoy’s notion of “religious teaching” is perhaps best regarded as “spiritual direction,” for he dedicated a great portion of his life trying to discern precisely such spiritual direction for himself by selectively culling wisdom from all the major religious and philosophical traditions. Indeed, he speaks to that aspect directly further along in the letter:
In every individual a spiritual element is manifested that gives life to all that exists, and that this spiritual element strives to unite with everything of a like nature to itself, and attains this aim through love… The mere fact that this thought has sprung up among different nations and at different times indicates that it is inherent in human nature and contains the truth. But this truth was made known to people who considered that a community could only be kept together if some of them restrained others, and so it appeared quite irreconcilable with the existing order of society.