The Kresz used to be plagued with House Wars, each fighting the other for supremacy, and causing a lot of death and suffering as a result. But with the 'emergence' the Kresz developed their empathic sense, feeling the emotions and physical suffering of other Kresz as if it were their own. That brought a sudden stop to the House Wars as fighting between Kresz became impossible.
Sense8 tracks the emergence of an empathic ability in eight individuals across Earth. They can access each other's emotions instantly - but it also goes a bit further. They can talk to the other sensates even when on a different continent and - by the look of the trailers - they can also access the skills of the other sensates. But it was the origin of the sens8 ability that made me think of the Kresz. Here's a snippet from JMS's interview:
Our theory was that originally we’re all sensate, and we all had this ability. The mutation was those who are born without the ability because they’re more efficient killers. If you can’t feel that person’s pain, it’s easy to wipe that person out. Over time, those individuals outnumbered those who were sensate.How cool is that? I'm very happy to be sharing ideas with JMS :-)
You can read the whole interview here.