It's like a letter - you have to open it before you can know what's in it. Truth isn't outside, that's only memory, not wisdom. Memory without wisdom is like an empty thermos bottle - if you don't fill it, it's useless. You won't be able to find it. But when your hearty is ready, it will come looking for you.
All religions are like different cars all moving in the same direction.
People who don't see it have no light in their hearts. Dhamma is in your mind, not in the forest. Don't believe others. Just listen to your mind. You don't have to go and look anywhere else.