Memory or illusion

Before me stretching golden shores,
End of journey steadily arrives,
Land my tired soul adores,
That in earthly abundance thrives...

At last, a safe haven now I see,
And screeching gulls above I hear,
Clear like sun over vastness of sea,
For a moment...then visions disappear...

Sun extinguished, darkened sky,
Famished figure on broken keel,
Over waters cold, echoes desperate cry,
What is illusion and what is real?