Continued from the previous imagery – the message has come 'forever/since the beginning'. There's a conflation between the long, arduous journey of the insect messenger, and that of light which reaches out to us through deep time. Old light is old information; much of it doesn't reach us. How much of it is absorbed in the final instant before it reaches its destination over aeons?
The annihilation of the message itself may have a meaning; or it might just be one more dead bug on the glass.