Hebrews 10:24-25

And let us consider one another to provoke unto love and to good works:  Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.     

We were meant to come together and build each other up.  Everyone, at some time, will have a need that only a fellow Christian can help walk them through.  Isolation just gives the devil an open space to plant seeds of doubt, fear, and loneliness. We need to inspire each other to good works by our love for each other, without it we are just like the world.