Answer:
riding on a horse.
Step-by-step explanation:
The given text is taken from the poem "Erlkönig" written by Goethe. The word "Erlkönig" can be translated as an "Elf King." The poem speaks about the father and a child who are riding late at night. The child is being carried by his father as the child is being assailed by the Elf King.
The father and the child are riding in the late night on a horse as the father tries to save his child from the king but till they reach their destination, the boy is already dead.
So, the opening lines depict a father carrying his child on a horseback.