Final answer:
An example of futility, or ennui, in 'The Journey of the Magi' by T.S. Eliot is the spiritual exhaustion and disquiet the magi feel upon returning home, as they no longer fit into their old lives, which feels futile after their journey and the transformative epiphany they have experienced.
Step-by-step explanation:
The question appears to be a bit confused, as it seems to conflate elements from different works. 'The Journey of the Magi' is a poem by T.S. Eliot, not related to 'Endgame' by Samuel Beckett, which is mentioned at the beginning. However, if we're discussing an example of futility or ennui in 'The Journey of the Magi,' the poem does convey a sense of futility towards the end where the magus reflects on the death of his old ways and the birth of a new, which he experiences with mixed feelings. The powerful line in the poem, 'We returned to our places, these Kingdoms, But no longer at ease here, in the old dispensation,' encapsulates the spiritual and existential ennui facing the magi after their journey and the sense that their previous lives have become futile in the face of the transformative experience they've had.