It is, yeah. People have different views on what these spirits are. Some say they are real forms of consciousness that exist outside of ourselves…while others believe it is part of our own subconscious mind. The answer isn’t all that important as a beginner. What matters is the results. I wouldn’t be here at all if this was just people randomly worshiping one god over another. Ain’t got time for that bullshit. The key to making magick work is not so much belief in the existence of spirits, but your emotion while in the ritual. As long as you can muster that, you can get results too.
A good book for you to start with would be The Master Works of Chaos Magick by Adam Blackthorne. Chaos magick puts less focus on spirits and more focus on your own emotional states. That book is a great foundational place to begin, and its a fairly quick read. I’ll also link below my thread where I’ve compiled the success stories of other users on here which you may be curious enough to read through at some point
https://www.amazon.com/Master-Works-Chaos-Magick-Techniques/dp/1533352070