Interesting question about beliefs...
Having been brought up in a pretty extreme evangelical baptist church I have a strong belief in the negative impact of organised religion! Specifically in terms of the oppression of women, people with mental health issues, and the general use of fear to control and coerce. Don't get me wrong, I don't think christians are fundamentally bad or controlling people per se- just that any hierarchical structures like organised religion can be a breeding ground for exerting power and control which can be dangerous and damaging. That's my experience.
Moving away from that background and the impact of it, my belief system is that all life should be respected- animal, human, nature and that there's magic in it. By magic I mean connection and wonder. Synchronicity and symbiosis. Within this, I believe in the power of the individual to affect change through intention and projection of it. I think that like attracts like so if I can use spell work, ritual, meditation etc to 'change my vibe' or put energy 'out there' then I can manifest certain circumstances.
I don't believe in a specific god but enjoy piecing together parts of different belief systems that resonate with me. This can change over time depending on my interest/ situation at the time. I think it's more the ideas and symbolism that appeal to me than an actual belief in any specific deity.
Most of all I love the power of femininity that I see as central to the witches path. The strength and power of women that's always been there but has been quashed in our society I think.
I'm never surprised by what appears to be a connection to another 'realm' but don't feel the need to seek explanation for it. I enjoy the freedom of just accepting the 'lesson' it gives.
I don't know if that makes any sense at all! It's actually very hard to pinpoint and put down in words. I think I live quite intuitively and enjoy not attributing my experiences or beliefs to any pre-prescribed system.