What do you mean?
The uneasy feeling that comes when we become aware we have a metaphysical meta-awareness - ie. an awareness that a metaphysical position isn't a given, isn't something solid that would have always existed?
We can conceive of ‘nothing’ as the lack of anything, but we know this is not the case since there is something, and so a lack of anything was not possible. This information indicates that there has to be something, that there must be something, but we don’t yet know why.
Yet if the basic something(s) had been around forever, they never would have been made, there both being no source and no no time or place for the creation, yet something has definition and properties without any defining point; so, the something had to be created at some point for some reason, and it can’t be eternal as non makeable and unbreakable. Nor is the something completely full, totally filling up all possible space to absolute solidity, as then we would be packed in like sardines.
This is all philosophy so far, but for the known of something, and we further philosophize that since things can’t forever be made of lessor things since not only would this cascade never end but also have no definition point for the things that nothing is the only possible source.
None of this would seem to go anywhere by itself but for the fortunate correspondence of observation that there is a curious zero balance of symmetry of the basics, this being that pairs of substance pop in an out of existence that have opposite polarity of charge and matter state, such as an electron(-) and a positron(+), as well as that the negative potential energy of gravity matches the positive kinetic energy of substance. There is also the symmetry of there being only two stable matter particles, these being charged, the electron(-) and the proton(+), and their antiparticles, with only one stable neutral energy ‘particle’, the photon, which seems to have a positive and negative lobe.
So, the positive metaphysical position of stuff forever fails, it being absurd for having no source, while a total lack of anything also fails, being absurd since there is and must be something.
Evidently, nothing forever and something forever are true and always present at the same time, which is a kind of neutral metaphysical position, for something always becomes of nothing, the something ever happening, yet these ‘sum-things’ ever summing to nothing overall. Existence has to be made of partial nonexistence in balance.
Electrons, beings, and Beings are somethings, a range of the simple to the more complex, but none of them can be fundamental and eternal. What is eternal and boundless would be the ever in-between of completely full or totally empty—a finite realm ever jitter-bugging with ‘sum-things’, and this Totality fits the bill of being the prime mover, requiring nothing but itself, as well as being eternal in duration and boundless in extent.
Even if one retreats to “can’t know”, just in case, there is still the freedom to be (within our form) because “can’t know”.
Suggestion:
a) All single positive metaphysical positions can be shown to be logically indefensible by themselves.
b) A neutral metaphysical position is thus logically defensible.
c) The universe is either metaphysically neutral or paradoxical.
PS
There can be no stable uncharged (neutral) matter particle with no antiparticle in free space (neutrons decay) because there would be no way to nullify the existence of the substance in the overview by the halves of polarity, and there can be no charged energy particle with a different antiparticle in free space because that would then have to be substance and because energy already embodies Totality at large rather than half of it.
Things are the way they are since there is no other way for them to be.