Chabadshlucha,
Again one line out of context. You never had a feeling so deep you felt you could only share it with a very close friend?
Not out of context. This is a song about desiring a spiritual connection, and in that realm there is only one very close friend that we can connect with: Hashem. A rav or rebbe, no matter how holy, serves to help us strengthen that one connection, not to make one in addition to or in the middle of it.