Instances of magic realism in the passage with explanations are listed down.
Step-by-step explanation:
"Her husband
emerges from the light and comes toward
her, taller than the palms, walking on water"
This part of the passage employs the technique of magic realism.
It is when the improbable things like myths, legends, larger than life comparisons are interspersed in a realistic narrative so as to make sense of things that do not otherwise make much sense.
Here, the woman does not believe her eyes when her husband appears in the skyline so the imagery that describes his appearance is used in this way to convey the magical emotion.