What what means? We know the universe exists, don't we? And we figure (ok, scientists figure) it had a beginning. Don't we? Let's start there, but I gotta go soon so I hope to see your answer later...but anyway -- beliefs are that, and my belief is based basically on what the Bible says, not what my eye necessarily observes or what scientists claim. Even though I take vaccines and appreciate testing of substances, etc. (Have a good one...)
To recap -- do you believe the universe had a beginning? Maybe I just didn't get your answer...
I try to avoid believing things that I can't know to be so.
I provisionally accept that the universe had a beginning. But does that mean existence had a beginning? From our perspective, it does, because the universe is all we know to exist. But we also know that our perspective is limited to, and also within, that same universe. So whatever may be happening or have happened or will happen before or beyond it is a complete mystery to us.
We humans can, however, use the philosophical process to try and explore beyond these limitations. And in doing that, a few observations become obvious
1. It is not logical to presume that the universe (or anything else) could have spontaneously self-generated. Something cannot come from nothing.
2. It is not logical to presume that the universe exists perpetually because the universe appears to have a beginning, and because it is in a consistent state of change. Perpetuity would not logically require any beginning, nor would it logically involve any change.
3. So if the universe did not create itself, and it was not always extant, then the only logical remaining possibility is that something else is responsible for it's existence.
But what? Again, science is of no help here. So let's try the philosophical process, again. What can we logically surmise?
1. We observe the universe to be a coherent, 'natural' system, that manifests what is possible within a set of imposed limitations (what is not possible).
2. Whatever is responsible for this universal manifeststion must then be 'supernatural' (by definition), incoherent capable (by necessity), and more potent than the universe, itself (omnipotent)
3. By these characteristics, we could label this mystery "God". But Whatever label we give it, we need to keep in mind that it remaims a very deep and profound mystery. Labeling it and inventing stories about it and anthropomorphizing it may certainly help us pretend to ourselvesand each other that we "understand it" and can relate to it. But we delude ourselves, and the mystery remains as deep and profound as ever.