How did you end up on this planet? Did you die?
Not planet. Different realities. Feel free to skip this explanation, if you like. Reality, everything you know and experience on every level, everything that can be or happen or exist (here, in this world), is made up of the same essence, energy, 'fabric'. This is the fabric of the soul, and of everything we experience within the reality we are in. In that sense, 'reality' (a world) is a circle surrounded by everything ('fabric for everything'), and everyone and everything ('self-contained; what the fabric is shaped into by this circle') flows on the inside, the outside is 'free' - it is not shaped, and everything that is inside the circle is applied from that and itself. And calling it a circle is, to make this clear, only a visualization, as a 'shape for visualization' for myself; this fabric is not space or let alone shapes or 'anything', on that level of application, as it's what makes anything into what it is, anything we can think of needs to be shaped first, and this is 'outside' of that, it is what shapes it. A reality, a world, a 'circle' in terms of that visualization, can be a universe, or multiverse, it can be anything within the constraints it's been given, as it shapes energy, 'fabric' into anything at all - and the flow of this energy is the same throughout, and it mirrors through everything like that, it is just 'governed', 'shaped' by the constraints of this 'circle' (a reality).
So, everything here is shaped the way it is by the outsets that it has, the 'border of the circle', in a sense. If you wish to use a visualization, you can imagine that there is an undefinable large 'field' of 'space' (though there isn't any space), and within that field, there are 'circles' (again, only visualization) - and everything that is experienced in what we know as reality, our universe, and anything and everything that can happen and exist in it, at all, is contained within our circle. This is everything you can know, in your world, in that sense. My soulful groundwork is that of a different 'circle'/reality, and this reality is my home. I began growing into my memories of home and as such of the 'outside' (we, here, by default, are 'cut off', in the sense that (our) reality is fully and entirely self-contained by default, with no 'direct' knowledge of the outside (or of there even being anything beyond the 'borders' of our reality) being accessible on a direct level) from age 12, which is known as the age of past-life memory recollection at home - this does not apply within our circle, as its 'outsets' (how it defines the fabric for being of any kind) do not include past lives - a soul that gets born here will generally 'form' (sort of), get shaped from scratch, in a way, and as such, there is nothing prior - I am an exception there (and who knows if there are others). You can think of the outsets as 'rules' that are defined in advance, they are the boundaries within which the flow of energy ('content' would work there, maybe) happens/can happen. Essentially, this includes all possibilities within a world, anything it can include, anything that can but may never happen is part of the 'groundwork' of this world, the boundaries of it, the outsets. These are the rules by which reality shapes itself, by which applications of souls (how our groundwork of being applies itself) are defined - what everything has to happen within.
So, yes. Same soul, different application thereof. Past life.
(Do with this what you will, I'm only sharing so much to answer your question. People generally don't appreciate honesty, when it comes to this, but I'm also the past the point of justifying myself for who I am or where I'm from.)