Lustrous memories are harvested from lustrous wisps, east of the Slayer Tower. They can be converted into lustrous energy or experience. If it is converted to energy, then 1 experience is gained, and a variable amount of energy is received. If it is converted to experience without using energy, then 32 experience is gained. If it is converted to experience with energy, then 40 experience is gained. This requires 5 lustrous energy per memory.