When I first read about the concept of an "infinite now" existing outside of our perception of linear time, I had a difficult time imagining it. Later, (to be linear here), I was able to get closer to the concept by imagining my higher self watching multiple screens, one for each incarnation. Of course, my brain still wanted to imagine each screen playing in a linear fashion, where my higher self could fast-forward, or rewind, each lifetime. The more that I played with this imagry, the more I was able to see each lifetime as "all happening at once". I eventually got to a point where I would get confused while having spiritual discussions with friends that used words like "before" and "after". It's all happening now.