Lyric discussion by DTFANIAM 

Cover art for Half-Light lyrics by Porcupine Tree

This person,either mother or son (I am not familiar with the Deadwing screenplay), is dead. He/she has been hanging around in the "half light" (between "the light" or, as some people say Heaven, and life on Earth) and is ready to make the full step into the light. But before doing so, he/she is contacting the other to say goodbye and to remember me this way.

Quite beautiful, moving and definitely on of PT's best!