To say that our relationship with Christ is the most important relationship in our lives isn't new revelation but do we treat it as such. Do we invest in our relationship with Him to ensure it is healthy? Do we put in the effort necessary to maintain it? Are we aware of and do we address the things that distance us from Him?
Like most, if not all, areas of life, you reap what you sow. In other words, you'll be as close to Christ as the investment you put into the relationship.