It seems that karma operates in all planes of Existence - so that the very energy-substance is altered. This means that an entity naturally living within this galaxy builds its body from galactic substance and thereby participates in the karmic patterning of that substance.
The activities of the entity alter flows and relationships so that there is more karma, conventionally existing on the level of groups, species, planets, solar systems etc.
There may be other karma concerning intent but that is less obvious in this galaxy at present.
The essence of karma seems to be pressure on the hierarchy of greater entities within which planets etc exist/serve. Thus the Lipika Lords (Lords of Karma, Recording Angels) pressure all intelligences internal to their system to conform to the directionality of their enveloping entity.
Adverse karma may be experienced as discomfort by the enveloping entity - with resulting action to diminish the difficulty.
Positive karma is better but apparently still needs to be worked out so that the active entity is properly free in its operations within yet higher planes and systems
