“Seth material” search engine (Jane Roberts)

You know where physical reality is, then, on the dial of your multidimensional television set. While focused within that living scene you can learn to travel through it, leaving the “surface” picture intact and whole. In a way you program yourself, going about your daily duties as conscientiously and effectively as usual — but at the same time you discover an additional portion of your own reality. This does not diminish the physical self. Instead, in fact, it enriches it. You discover that the psyche has many aspects. While fully enjoying the physical aspect you find that there is some part of you left over, so to speak; and that part can travel into other realities. It can also then return, bringing the physically oriented self “snapshots” of its journeys. These snapshots are usually interpreted in terms of your home program. Otherwise, they might make no sense to the physical self.

In your terms, Ruburt has been out for the real thing — to experience the unknown reality directly through his own perceptions, as divorced from the scenes given him by the postcards. Period.