Just a little thought exercise about things that ultimately matter...
We exist, self-aware, but chance is not even close to being a sufficient cause to explain our existence.
Therefore, something other than blind chance is responsible for our existence.
Whatever we can do, think, envision, discover, or know, the something responsible for our existence must be able to do better.
Therefore that something must be personal and intelligent.
Since we can reason, explore and discover, especially things like those above, that something must have wanted us to be aware of his existence.
Therefore that something must be communicative.
Everything that exists is highly ordered, symbiotic and incredibly efficient within its environment.
Therefore, that something should not be expected to be inscrutible, indifferent, or uncertain, and especially not so in his communication to us.
Therefore, it should be expected that something would have spoken to us clearly, in an engaging, inviting, and understandable way, and there is neither reason nor excuse not to know of him.
Only Christianity can swim in these waters. Or in other, somewhat Cartesian words: I think, therefore "I AM" is.
Perhaps you have some thoughts that would fit into the exercise.