Why is there so little written on the greatness of the happiness in Heaven? Jonathan Edwards said that terms such as 'ecstacy' and 'joy' were too meager to describe Heaven but were 'low shadows' of the reality.
This (if so) is obviously hugely exciting and, for me, (as a Christian) it is very inspiring. However, one thing puzzles me. If this is the truth (or most likely truth) how come so little is written on the matter? I have done endless research and few other great theologists seem to have hazarded such a guess. Even CS Lewis (my favourite and, indeed, perhaps the most inspirational speaker of recent years to speak on Heaven and joy) never (or, at least, extreemly rarely) seem to venture a guess as to exactly HOW great Heaven's happiness is.
I take it that it is a 'better place'...but does that mean the great happiness of Earth minus the sorrow...or also a greater form of happiness than can be concieved of here?
Seeing God obviously provides a joy as yet unknown and longed for. I assume this joy is above even the greatness of romantic love here? Or is there no higher quantity of happiness than that but, rather, it is unknown because it is qualitively different?

Hope this is clear (and ok). I seem to have a habit of writing the sort of questions this site objects to as I'm not much of a seasoned pro when it comes to scholarship. Maybe I'll get there in the end.
I would think so little is written on the happiness of heaven due to the fact that once you get there you don't come back to explain the 'Happiness". Christ spoke on Heaven, and to be in His presence...going to be awesome!! 

If as Christians we are not in a constant state of communication with our Lord, then we will lose our connection to "Joy". We should be striving to be like Christ and in that we should find Happiness. The very fact that we have "hope" in Him is Happiness. Our flesh does not always support this, and as we mature, we should begin to understand that the Spirit of Christ in us is what pushes us forward until we enter heaven either through death or by His return and our exchange of flesh and blood to our new body.

1 Corinthians 15 
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; nor does corruption inherit incorruption. 51 Behold, I tell you a mystery: We shall not all sleep, but we shall all be changed— 52 in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptible, and we shall be changed. 53 For this corruptible must put on incorruption, and this mortal must put on immortality. 54 So when this corruptible has put on incorruption, and this mortal has put on immortality, then shall be brought to pass the saying that is written: “Death is swallowed up in victory.”[g]

55 “O Death, where is your sting?[h]
O Hades, where is your victory?”[i]
56 The sting of death is sin, and the strength of sin is the law. 57 But thanks be to God, who gives us the victory through our Lord Jesus Christ.
58 Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.

Hope this helped somewhat. (copied from Biblegateway.com)