How will you take it - light or dark or grey?

Everything must thin

for the dark to come in
for the light to pass through
and become the dark too

 

all must be effaced

and the feelings faced
and maybe that’s just light
but could also be the night.

 

It may be either-or

but equally, nuanced more
a long gradual fade
from slow light to shade

 

both of them must thin

so how’ll you determine
which of them will do
and which is finally true?