The method remained the knowledge of the few for a long time: the hierarchies of churches were in no hurry to reveal it, and many otherworldly beings ascended blindly, paying for it with their sanity.
The roles of the path are shipboard: Sailor and Mariner live by sea work, the Wind-Blessed steers the vessel where the weather is against, the Ocean Singer appeals to the element itself.
The potion must be brewed according to a strict recipe. The drinker must behave as prescribed by their stage until the power becomes part of them. Until the potion is digested, the bearer is vulnerable: the power is already there, but there is no authority over it yet.