We were created as wholly intimate with God. In perfect harmony and shalom, we walked with Him. Then one day man turned away, and sin caused us to die.
It's well known that conflict, when occurred and resolved properly, can bring the conflicters closer than they were before the conflict. We see this not only in healthy marriages, but also in Song of Solomon. Solomon goes to his wife's chambers but she denies him. He leaves, she repents, is punished, and goes to find him.
What's incredible is that after we resolve conflict, which in the case of Christ and man is sin and forgiveness, we are drawn a little closer to Him, but not as close as we were originally. And if our fellowship with Him is this great while living in our flesh, how much more glorious will it be when we are once again in His likeness? When we no longer see through a mirror dimly, but see Him as He is, and are His perfect and spotless bride.
Maybe though, you haven't begun to walk in the Spirit here on earth. Even though it isn't perfect fullness, it is communion. In that communion there is comfort, peace, and forgiveness. There is also suffering, but power and purity. We have the promise that we will be rewarded both here on earth and in heaven, and that the rewards far outway the costs.
How do we enter into this communion? We learn of Him, who He is and what he's done by reading His Scriptures, and we believe and accept Him. He is faithful to not only be present but moving.