The Malkioni posit the existence of something all-powerful, all-knowing, and all-good (or at least all-rational) – the Invisible God. That entity is invisible to us – we can’t go “visit it” or be it. This all-powerful, all-knowing, and all-good being does not provide any magic or indeed it does not act, speak, etc. It simply IS. But by studying the world (including the lesser gods), we mortals (or at least those who specialise in sorcery) can impose our will upon the world made by the Invisible God. And this is also good.
The Malkioni make many of the same arguments I see made on these threads and forums – that the gods are inconsistent, that they fail to meet the same demands they place on their worshipers, that they are responsible for their degeneration of the world and the coming of Chaos. But those are Malkioni arguments – to most Orlanthi, Praxians, et al, such arguments fall on barren ground.
Now I deliberately did not include the Lunar Empire in that. The Carmanians and their dualist concept of Idovanus and Ganesatarus seeded Peloria (at least the Pelorian intelligentsia) with a certain amount of receptiveness to Malkioni philosophy, although for most Lunars this is pretty infertile soil as well. But there may well also be bits of Nysalorean illumination involved here.
Malkioni humanism places mortal humans at the centre of the world – unlike say Orlanthi or or traditional Solar religion which places the gods at the centre of the tale.