A small number of contactees, those who we anticipate will act as a catalyst during the Awakening, are shown line-ups of alien life forms. There are many planets, many worlds, with similar physical components.
Life forms with similar DNA, such that the contactee can breath the same air.
The contactee might not fare that well on their worlds, but he would certainly not die instantly. And thus he is allowed to be in the same vicinity as the life forms being presented, to speak to them, and to begin to integrate the concept of being what some have termed a galactic citizen. This gradual orientation, which is done in stages so as not to overwhelm the contactee, usually progresses from hominoid life forms to lifeforms humans have never encountered on Earth. In between are reptilian life forms or water creatures such as a jellyfish or an octopus. Our emissary, Nancy, has been presented with such lineups, and relayed these experiences in her own words within ZetaTalk.