They whisp, spectres taken form.
Almost seen, they mask themselves
in cloaks and march through a
maze, constrained and floating.
The moon is what they are after.
She’s yellow, they know,
and round, full.
She’s tangible substance
while they float,
she strides,
while they are ever-hungry,
she eats.
Life, life they whisper in cracked
wind voices.
If they meet her, they will live.
Three persevere though one
cannot face the light,
and hides in a dark corner
dreaming of the moon.
The others chase,
sometimes catch!
– but she, intangible,
disappears.
This one is for all you Pacman fans!
Inky Cat's Poems 
Oh, Inky Cat, you gave the clue only at the end – and I have to say I grew up (if indeed I am fully grown?) before the Pacman era. So I shall get Leveret to explain the finer tuning of this evanescent poem. Or Uncia uncia, my snow leopard.
The broader song delights me! Thank you.
Thanks for your comment! Well, Pac-Man (a yellow almost-moon) eats white dots and is chased by four ghosts. If one of the ghosts touches Pac-Man the session ends and Pac-Man resurrects to be chased again. Also, one of the ghosts is coded to chase Pac-Man most of the time, but also moves toward the lower-left corner of the maze when it gets too close to Pac-Man. As if its heart’s desire would be too overwhelming to actually attain. https://en.wikipedia.org/wiki/Pac-Man