The item description reads:
A first-person account (synthesized):
He turned his back on the light and began the long walk down, leaving the desire behind for the sake of the . tower of ecstasy – crystal of desire
"A crystal siphoned from the cracked tears of the tower’s residents. A crafting material. tower of ecstasy – crystal of desire
If you are looking for this item for gameplay purposes rather than lore: tower of ecstasy – crystal of desire
Together, they form a model of the seeker’s journey: desire crystallizes into a focused object, which then becomes the tower from which ecstasy—or ruin—is experienced.