Hyakunin Isshu · Heian Period · ca. 1090

A Guard's Sleepless Nights: Suma Coast, Japan 1090 CE

淡路島かよふ千鳥の鳴く声にいく夜ねざめぬ須磨の関守

Awajishima / kayou chidori no / naku koe ni / ikuyo nezamenu / Suma no sekimori

Plovers crossing from Awaji Isle— their cries pierce the darkness. How many sleepless nights for Suma's lonely guard?

— Minamoto no Kanemasa (源兼昌)

About the Poet

Minamoto no Kanemasa (dates uncertain, active ca. 1090) was a Heian-period poet and court official who served as a middle-ranking noble during the late 11th century. Little is known about his life, which adds an air of mystery befitting his melancholic poetry. He held various minor governmental positions but achieved lasting fame through this single poem included in the Hyakunin Isshu anthology. The poem's setting at Suma suggests Kanemasa either served there or deeply empathized with the isolation of frontier guardsmen. Suma, on the coast near modern-day Kobe, was considered a remote posting—a place of exile and loneliness in classical literature, famously depicted in The Tale of Genji. Kanemasa's contribution to Japanese poetry lies in his masterful evocation of solitude through natural imagery, capturing the universal human experience of sleepless nights far from home. For travelers visiting the Suma coast today, his verse transforms the shoreline into a living poem.

Suma no Seki, Kobe, Hyogo

Suma no Seki was an ancient barrier gate on the coast near present-day Suma-ku in Kobe, Hyogo Prefecture. Today, Suma Beach offers a contemplative escape where literary history meets scenic beauty. Visit Suma Temple (Sumadera), founded in 886, which houses artifacts related to The Tale of Genji and the Genpei War. The beach provides stunning views of Awaji Island across the Akashi Strait—the very vista Kanemasa immortalized. Autumn is ideal for visiting: mild weather, fewer crowds, and the haunting cries of plovers echoing through history. The Suma Rikyu Park offers traditional gardens perfect for quiet reflection. Take the JR Kobe Line to Suma Station, then walk to the shore. As evening falls, listen for shorebirds and imagine the lonely gatekeepers of centuries past.

Understanding the Poem

This poem masterfully weaves together sound, space, and solitude. The plovers (chidori) flying between Awaji Island and the mainland serve as messengers between worlds—their cries piercing the night and the guard's heart. The repetition implied in 'how many nights' (ikuyo) suggests endless, accumulated loneliness. The barrier guard (sekimori) represents anyone stationed far from loved ones, performing solitary duty. The poem employs 'aware'—the pathos of things—as human isolation mirrors the plovers' restless journeys across dark waters. Sound dominates: we hear the birds before we see anything, emphasizing the guard's wakeful darkness. The geographical specificity (Awaji, Suma) grounds abstract emotion in real landscape, a hallmark of classical Japanese poetry that transforms places into emotional repositories for all who visit thereafter.