The Bible could be compared to a navigation system.
To simply look at a map for a potential road trip doesn't take us anywhere. To own a Bible does not make one a Christian nor does it do anything in one's life.
Nor is the Bible, God. It is however written about the lives and experiences of many people who truly knew God.
Therefore to get anywhere, we should align our lives with the instructions of the Bible. Similar to following the navigation's directions, if we do, we arrive at the desired location.
To obey, sometimes, is going to go against the deepest of our heart's desires and will make no sense at all. Some times we'll see those we love, reject us for our adherence to these principles. Some times it will mean ridicule and we'll want to give up.
If some Scriptures make no sense, this is an opportunity to just trust God. That at some point, understanding will come.
This is the nature of Christian growth.