A modpack not really based around one specific idea or goal. It is a modpack where the player is free to play their own way.
Explore different dimensions finding ancient structures and tough bosses,
Build fancy machinery to make the most out of your ores,
Build rockets to fly to tons of different planets,
Garden and farm to your hearts delight,
Revel in the power of good and evil magics,
Build powerful weapons to destroy your friends,
Mine to your hearts content.
The only limit is your own imagination (and your attention span ^-^)