A good description of this is in Mere Christianity by CS Lewis. It's worth reading. His thesis is roughly:

1) We have a moral sense which goes against what we want to do.

2) That sense is how the Spirit speaks to us.

I might want to have an affair. I might know I won't get caught. I will have a sense that it's /wrong/ and not do it as a result. Where does that sense come from?

To be clear: (1) I'm not doing it justice (2) I know the trite atheist answers. However, it's worth reading and understanding (as well as similar texts from other religions) for at least two reasons:

- As with any polarization, it's worth listening to all sides to understand them and be able to empathize with thenm.

- It gives a sense of why and how religion is logical. It's as strong as any case against God which I've read.

Footnote: The latter is a plurality-style and not a majority-style argument. There are many good arguments in many (incompatible) belief systems. They're all worth studying.

When you're "seeking revelation" there is the expectation that you'll work it out as best you can on your own. Revelation is not intended to be an easy/lazy shortcut--in my experience it's taken significant effort. But having the Holy Spirit communicate to you is different from coming to a conclusion on your own. If I get analytical about it, while receiving revelation has been a personal experience for me, there is (at least what feels like) an external force at play (that I attribute to the Holy Spirit) when it happens. From the outside looking in, I can understand this may cause concern for those who haven't experienced it--"you're listening to voices/feelings in your head!" But it's led me to "good" things (be a better person, live more honestly, have greater hope, have greater peace, repair a wrong I made, take on more responsibility, get off the couch and go help someone, hold to my principals, etc).

I know people may complain about hearing this, but if you're genuinely curious it's easiest to understand if you actually experience it for yourself. Carrying from the previously mentioned analogy, I can spend hours trying to communicate to you what salt tastes like, but I won't be able to do it justice. That doesn't mean I'm not willing to try. But if you are curious I'm happy to discuss further in a more private way. I've had my experiences that have led me to my beliefs, but they are experiences I only wish to share in environments where respect can be communicated/felt between myself and the person I'm sharing them with.