Eternal Joy

Alma is writing to his somewot wayward son, in the 41st chapter of the Book of Alma, and he says in verse four:

4 And if their works are evil they shall be restored unto them for evil. Therefore, all things shall be restored to their proper order, every thing to its natural frame--mortality raised to immortality, corruption to incorruption--raised to endless happiness to inherit the kingdom of God, or to endless misery to inherit the kingdom of the devil, the one on one hand, the other on the other--
5 The one raised to happiness according to his desires of happiness, or good according to his desires of good; and the other to evil according to his desires of evil; for as he has desired to do evil all the day long even so shall he have his reward of evil when the night cometh.

So, what will it be like to be eternally happy, to not have to be stopped to linger in the shadow of death, but to be able to feel joy constantly?

Well?

JPS