Memory of Lucid Dreams

Memory of Lucid Dreams is an Azerite Essence obtained by leveling up your Nazjatar combat allies.

Source

 * Rank 1 is learned from Pearl of Lucid Dreams, a quest reward from A Brief Respite or Down Into Nazjatar or A Brief Respite.
 * Rank 2 is learned from Pearl of Manifest Ambitions, a quest reward from Friends In Need or Down But Not Out.
 * Rank 3 is learned from Pearl of Perspicuous Intentions, purchased for 50 Prismatic Manapearl from or  after completing Nautical Battlefield Training.
 * Players who have learned Rank 3 of Memory of Lucid Dreams, Aegis of the Deep, or The Ever-Rising Tide on any character have the option to purchase this item for 2,500 Echoes of Ny'alotha from MOTHER in the Chamber of Heart.
 * Rank 4 is learned from Pearl of Luminous Designs, purchased for 75 Prismatic Manapearls from Speaker Utia or Atolia Seapearl after completing Aqua Team Murder Force.

Resource
This essence affects a different resource or spell for each class and spec:

Trivia

 * This ability was mentioned in the April Fools' Day patch 8.8.8.88888 notes: "Memory of Lucid Dreams is now 10% more memorable."

Patches and hotfixes

 * Major power: Clear your mind and attune yourself with the Heart of Azeroth, increasing your Shield of the Righteous recharge rate by 100% for 12 sec.
 * Minor power:  a chance to refund 50% of a charge and heal you for X.
 * Minor power:  a chance to refund 50% of a charge and heal you for X.