Headcanon: the Living Waters, when superheated and used in a beskar forge, have a mildly hallucinogenic property. Inhaling the fumes unlocks repressed or hidden memories in sentients, allowing these memories to be examined and confronted in a controlled setting. Armorers are aware of this property and limit forge access to the Mando receiving the armor to encourage their meditations upon past traumas - and their ultimate survival of those traumas - as a way to tie them closer to their armor. You survived. You are here to receive new beskar to ensure your further survival. It will protect you from such traumas if you honor it as it deserves.
If a foundling is not available to meditate upon their armor, like Grogu in BoBF, their ward (Din) may forge that bond with the armor instead. Armorers install special filters into their helmets to be able to handle the fumes without being affected, but remove them when forging armor for themselves.
(I just thought they deserved a lil mysticism, as a treat)
