In "A Very Old Man with Enormous Wings," the turning point that leads to the outcome is when the townspeople lose interest in the old man with wings and he is left to die alone in the chicken coop. This marks a shift in the story, as the old man is no longer the center of attention and is instead abandoned by the townspeople. The old man's death also marks a shift in the townspeople's attitudes towards the supernatural, as they are unable to understand or accept the old man's existence and ultimately reject him.
In "Sonnet for Heaven Below," there is no clear turning point that leads to the outcome, as the poem is more of a meditation on the speaker's relationship with God and their own mortality. The poem is structured as a sonnet, with a volta or turn in the final two lines, but this turn is more of a reflection on the speaker's own mortality and the inevitability of death.