Druuvai are spirits and do not have genitalia, and as such have no reproductive organs or concept of biological sex. Only their body type diversity and gender identity. However, certain druuvai are magically inclined toward one of two roles regarding reproduction : Gatherer, or Sculptor.
Gatherer
When two druuvai decide to create offspring, a great amount of stardust is required for the process. Sometimes that can be found on Baeriia, but other times, one parent must travel into the expanse of space. There are plenty of spacefaring druuvai born in nebulas far from Baeriia, who travel from planet to planet. The gatherer is a druuvai who has large reserves of magic that allow them to travel long distances without tiring, and a predisposition toward gathering stardust.
Sculptor
When two druuvai decide to create an offspring, a vessel is required. Not just any vessel, but one created with no malintent, with the correct amount of magic to host stardust and form a soul. Many times, these sculptor druuvai have the strength and endurance to mine materials themselves, and the craftsman's touch to make a golem from nothing.
The creation
Once enough stardust is gathered, the two druuvai fuse their respective magics together and weave stardust into the vessel made by the sculptor. Until a vessel is given life, it is referred to as either a trinket, or a golem. Trinkets are inanimate and often made with no precious stones (they will often become common druuvai), where golems are constructs that protect their creator, are usually larger and contain a precious stone (these often become royal druuvai).