Here is something invaluable that Clive Staples tells us..
"But the obedience which [God] demands of men is quite a different thing. One must face the fact that all the talk about His love for men, and His service being perfect freedom, is not (as one would gladly believe) mere propaganda, but an appalling truth. He really does want to fill the universe with a lot of loathsome little replicas of Himself- creatures whose life, on its miniature scale, will be qualitatively like His own, not because He has absorbed them but because their wills freely conform to His. [The enemy] wants cattle who can finally become food; He wants servants who can finally become sons."
Lewis goes on to say this...
"He wants them to learn to walk and must therefore take away His hand; and if only the will to walk is really there He is pleased even with their stumbles"
*bear in mind the context of The Screwtape Letters, hence the odd vocabulary with 'loathsome' and 'appalling truth'. It is sort of a bad guys point of view. check out the book :)