The society was established in 1955 by George King and has around 650 members worldwide - 25 from New Zealand.
UFO research group UFocus NZ last week said it had received an "unprecedented" amount of sighting - more than 30 - over the previous two months.
One included the possibility aliens had visited Northland, with reports a man had seen a UFO land there.Aetherius spokesman Gordon McKenzie had not heard of the spike in sightings, but said the recent beaming down of alien craft could be connected to their society.
"You never know, we've got this meeting on so perhaps they're saying 'here we are'."McKenzie, who moved to New Zealand from the UK nine years ago, said he's seen "hundreds" of UFOs, but most of those were in the UK.
"It's usually craft that are going through the sky at incredible speeds and they can do zigzags, or do box shape flight patterns, or coil type things, that could never ever be possibly done by anything we've got on this earth and then blinking in and out of visualisation."
He does not know how many people will attend the workshop which is open to the public."The world is due for a great change and these [UFOs] are heralding that and giving their message through the society. We want to impart this message on the 31st."
