According to Bryant's "Thanatopsis," life and death involve natural processes that are not to be feared or dreaded. In fact, the uncertainties many people associate with death, for example, need not be a concern, according to the speaker who denies the possibility that dying is lonely. Leaving life only means connecting with a different kind of family in the form of "brother to the insensible rock" and "the patriarchs of the infant world...all in one mighty sepulchre."
At the end of the poem, the speaker insists that when the time comes, metaphors that suit death the most are not foreboding places like a "dungeon," but comfortable ones, like a chamber or room where "drapery" folds around an individual, inviting him or her to enjoy "pleasant dreams." This friendly and inviting depiction of death communicates to the reader that death is a natural and comfortable end to life, one that suggests restfulness rather than pain and isolation.