I no longer call you servants, because a servant does not know his master's business. Instead, I call you friends, for everything I learned from my Father I have made known to you. John 15:15
Jesus spoke of friends and servants. A servant has to do things his master doesn't want to do. He does what he is told to do, and does not necessarily know why he is doing it.
Jesus spoke of friends as those people he invites into his life and purposes. His friends willingly give Him control, because they know He has already done everything he will ask them to do -- pursue the will of his Father.
Our relationships will be unhealthy if we insist on being in command, and our purpose is singular -- personal gain. The model Jesus gives us is the example we must follow: share what you know about your spiritual adventure, invite someone to join you in what you are already doing, and then together, pursue the will of the Father.