Lets pretend all religions are equally possibly correct. If one goes by nothing but the numbers the chance of you being correct are 1 in 19 if you count the large religions of the world . From there if you add in religious sects and dead religions the chance goes down even lower.
So how do you figure which religion is the correct one if there is indeed a correct one?
I've seen people approach this issue in two different ways, one is simply that you feel a connection to a certain belief therefore you follow said belief. You seek out the gods you feel a connection to and go from there. Of course there is one big problem with this being that you relied on feelings to get you here.
You can feel a lot of things but that doesn't make them valid. You may feel it is for instance racist to criticize Judaism or Israel but that doesn't mean it is actually racist to do so. You may feel something is a religious experience but is in fact perfectly mundane. Mental gymnastics can only take you so far with your feelings.
Then you have reason. Some people try to reason out their beliefs and make sure they make sense. They'll argue and defend their beliefs to the very bitter end in some cases. Over the years they may even get very good at this.
Of course a problem arises here as well. You can not demonstrate that a god and even more painfully your own god/gods exist. You can not prove it and I know you can't because people have been trying for centuries now, millennia even and have as of yet come up with nothing.
"Ah ha!" they may say "But I can give you reasons it seems plausible that God exists!" There is usually a note of excitement among the younger apologists when they say this. The older ones may or may not even bother.
The issue here seems obvious to me. Any reason you could give still has to be taken with a certain measure of faith. The reason sometimes given is that life Is too complex to come from nothing. This of course ignores evolution but even then it's not really an argument for anything but a deistic god now is it?
I've heard just about every reason in the book now I think or at least a good portion of them. If you have another feel free to apply it here if you wish. I can't say I don't listen for good reasons even today.
In the end when I stop and think about it, the lack of evidence and the sheer number of religions makes it neigh unto impossible to determine what religion could be right. Of course many don't claim the exclusivity to the truth that others do but this is of little consequence.
So tell me , why would you think your particular interpretation of the spiritual is correct?
I don't think the existence of God can be proven, just like there are intangible things that most people would agree exist, but can't be proven by any scientific means. People can give reasons of why they believe intangible things exist and make arguments for them, but proving an invisable deity will be pretty hard to do. I guess the best way to come up with any real answer is by beginning a journey of trying to disprove something and see where that leads. As a Christian, all I can do is perhaps influence. I can tell you honestly about the facts of particular instances that I've experienced and allow you to decide for yourself if you think those facts cause you to believe that there could be a deity that caused those facts to take place.
As far as comparing religions, I would start by asking which one makes the most sense. According to what I have learned about human nature (since the core of most religions starts with an idea of right and wrong and bettering oneself). What I've come to know about human nature (from observance of people of all different ages, nationalities and gender, and from examining myself pretty closely, is that we all have the capacity to choose a right and sometimes selfless act, or a wrong and harmful one that has a direct or indirect effect on someone else. And I do know, or atleast, I can say personally, that I've never known a human that consistently does good to their fellow human, or even themselves. I also know that even when I want to do good, I don't always end up doing it, usually because of selfish reasons. This dilemma is the core of most religions. With every religion except Christianity, the goal is to strive to be a better human being, and that is from mustering up willpower alone, or trying to connect with a deity or deities which often time fails . I'm not saying we can't at times do good, but it is never 100% consistent (or close to that) no matter how hard we try. Every religion except Christianity, attains to arriving at perfection, yet no one ever reaches it. If the purpose of religion is to attain perfection, yet no one reaches it, then that religion is defective in the sense that it doesn't attain it's goal. Yes, it may improve people, but still is never complete. So Chritianity, as foolish as it seem to some , actually makes more sense to me. Because the Holy Spirit has been put inside of me because of my belief that Jesus was the Christ, I have a genuine supernatural help that enables me to continue to be regenerated from the "inner" person towards the outside, rather than the other way around, which makes for a true regeneration. I combine this understanding with the facts of my own personal experiences, along with the unique presence of the Holy Spirit that I never had in my pre-Christian life, and with the fact that many historians (including atheist and agnostic historians ) believe that Jesus did exist as a human being and that there were over 400 witnesses that claim to have seen him alive after he died, along with witnesses to his crucifixion. And yes, I've learned to trust certain emotions that correlate with certain perceptions over time that strengthen my faith.
I'm continually "seeing" more realities in life that line up with what Christianity teaches which would take way too long for me to go into now.
To me, the Gospel lines up with not only human nature, but also with the reality of the world itself in the sense that, in general, things are getting worse. Nature is becoming more unpredictable, many humans are becoming more and more selfish and hateful. The Bible has predicted these things would take place in the future, but no other religion seems to claim this.