Talk to Anson Charleston in Eversun City (X:140 Y:305). Anson will speak as though you are not a qualified shaman, and the journal won't update, but you can continue the quest, regardless.
Go to Charleston Manor in Blakatoa and speak to Nanny Charleston at X:175 Y:418.
If you do not already have a Sandalwood Incense with at least 100 durability, you can buy one from the Meditation Merchant nearby at X:194 Y:398. The 196/980 incense is sufficient, and costs 300 gold.
Prepare for a fight, and return to Nanny Charleston with a Sandalwood Incense with at least 100 durability remaining. You do not need any Meditation skill to do this step. 100 durability of the incense will be consumed, and a fight will begin.