The phrase "unseen forces" refers to things or powers that cannot be seen with our eyes, but still have an effect on our lives. These forces might include things like emotions, thoughts, or even the power of nature. Full definition
Characters are injured by unseen forces (the wounds are depicted with explicit blood effects). (parentpreviews.com)
Be aware that there are unseen forces at work, with far more influence than what a mere human has. (redeeminggod.com)
There is something both interesting and terrifying knowing that there are often unseen forces we could be encountering in our everyday life. (hollywoodchicago.com)