One of the key indicators of maturity in Christ is dependence on Him and fellow believers. Quite opposite to how the world would view maturity.  

Hebrews 12:15 teaches that believers are to look after each other so we don't fail to receive the Grace of God. This teaching gives us some practical handles on how to do that.

Life with Jesus has many benefits, but also implies some responsibilities for the followers of Christ. You can't have one and not the other.