Hi NikaKh, I am glad you enjoyed the power creep element. I really wanted to include a sense of power escalation as you moved through the game.
Your RNG must be amazing if you got three secret items, the chance is 0.1%
I don't think the duality meter is explicitly explained.
The text at the start is just the story, there's no need to comprehend it to enjoy the game.
Thanks again for playing, and keep an eye open for future updates!