This is guilt, if anything is guilt: not to multiply a loved one's freedom by all the freedom we can find in ourselves. We have, in loving, only this one task: to let each other go. For holding on is easy for us, nothing we need learn.
~ Rainer Maria Rilke in DEAR FRIEND by Eric Torgersen
Light gives of itself freely, filling all available space. It does not seek anything in return; it asks not whether you are friend or foe. It gives of itself and is not thereby diminished.