«قَدْ دَفَعَ اللَّيْلُ الَّذِي اكْفَهَرَّا»
The night, which had turned intensely dark and threatening, drove me onward.
Ikfaharra suggests a dark, forbidding aspect. The night itself is made the agent of pushing the traveller forward.
This is personification and heightened imagery, not a claim that the night physically moved him. His search for shelter is shaped by dangerous darkness and exhaustion.