One weakness that Christians have in the modern times, I believe, is providing a vision of heaven that really motivates people. I have often heard it said that the vision of heaven is boring. It must be admitted that Christians have often associated heaven with what seem to many of us to be boring images: harps, clouds, and effeminate figures with wings. At least Islam offers the Celestial Playboy Mansion.
As Kenny Chesney puts it:
Everybody wanna go to heaven
It beats the other place there ain’t no doubt
Everybody wanna go to heaven
But nobody wanna go now
Heaven for many of us is negatively desirable; it is an alternative to eternal punishment and extinction, which seem to be the options. I think the one thinker that has done the best job of giving us a picture of heaven that is positively desirable. This is an essay by Charlie Starr, published in the New York C. S. Lewis Society bulletin, which discusses Lewis's views of heaven.