Why did Jesus go away and ascend back to Heaven?

++++In my Fathers house there are many mansions, if it were not so I would have told you. For I go and prepare a place for you. And if I go and prepare a place for you, I will come again and receive you to myself; that where I am there you may be also. And you know the way where I am going. John 14:2-4+++++Can't wait to get home !!!