Some advice on what to keep handy

Trace down the sky
from finger to finger
past Orion, past Cassiopeia,
each of the Dippers
(or if you prefer, Ursas)
until the Moon rests firmly
between your thumb and forefinger.

Whether sliver or crescent,
gibbous or fuller,
just pluck it and place it
in a box full of memories
and keep it until necessary,
until the time and the place
when your eyes have gone cloudy.

Then in your mind's eye
on your last, little journey
let its light keep you company.