Don thank you for posting that link and thanks again to Godfrey for posting the Jackson article. These two together really do provide a lot of material to think about. I have just spent the time to reread the majority of the Jackson article and have two comments:
1 - this seems to me to summarize Jackson's position and how he deals with Sedley:
And this references one of the most important reasons I side with Jackson:
It seems very very difficult to believe that we (speaking for Sedley) can be in a better position today to evaluate what Epicurus meant when we have so few reliable works left to us, while Philodemus and Lucretius and others mentioned in these articles in the ancient world had virtually (or fully) the whole library of Epicurean texts available to them for evidence. To me it is not persuasive to think that if Epicurus had held a strongly idealist interpretation as Sedley argues that we would not have more evidence of it, and at the same time if that were true it seems doubtful to me that we would have the testimony of Philodemus and Lucretius and others that this is not simply something going on within our minds.
So I personally continue to hold to a "both" position, with gods serving "both" as symbolic aspirational goals beneficial to contemplate, and also as beings for which Epicurus held there to be "real" evidence of their existence (but not through the standard 5 senses).
For that reason I would side with the view that the "images" perceivable only by the mind that benefit us to contemplate stream "from" and not "to" the gods, and that the contrary statement is a scribal error, but with one caveat: I think it's likely that Epicurus held "images" to be streams of "particles" constantly streaming in all directions from everything at once, so I would expect an ancient Epicurean to presume that even while particles are streaming toward us from other things (including but not limited to "gods") there are particles streaming outward from us (towards those "gods") as well.
I think there is a lot of room for additional deduction here about what these sources mean. And I think one of the underappreciated implications is that if the "gods" are deathless then they presumably had no starting point, as implied in the discussion of how "similarities" can be immortal. This "similarities" reference is new to me and probably deserves more attention.
I would expect this cannot mean "platonic ideal forms" or "conceptions" in our understanding of "mental conceptions" (which is what Sedley seems to be arguing the gods to be) so what would it mean?