I Pity the Foo'!

You are the only human being who knows exactly what’s going on inside your head and heart at every moment, but you're not the only person. 

The Holy Spirit is a person. He and Christ are one. So, to have the Holy Spirit is to have Christ, which grants Christ access to your innermost thoughts and feelings and grants you 24/7 access to Jesus - the wisdom of God. 

It is only by the Holy Spirit in us that we can understand the wisdom of God, find peace with what we do not yet understand, and seek to further understand.