This illustration is also linked to this extract from The Little Prince:
But on your tiny planet, little prince, you had only to move your chair a few steps. You could watch night fall whenever you liked.
‘One day,’ you said, ‘I watched the sunset forty-three times!’
And a little later you added:
‘You know, when one is that sad, one can get to love the sunset.’
‘Were you that sad, then, on the day of the forty-three sunsets?’
But the prince made no answer.
You see, I just cannot understand life. At night I worry about everything:
those I love, my country, the things I love.
Antoine de Saint-Exupéry / Letter to X (1943)