This quest begins immediately after A Wise Friend. To progress with the quest, you will need to build the Seer’s Hut in Ravensthorpe. This will cost 800 Supplies and 60 Raw Materials, which you can acquire from raiding monasteries and other centres of wealth.
Drink the Potion and Enter Asgard
Once the Seer’s Hut is built, Valka will ask whether you’re ready to talk about your visions again. She will state that to pursue an understanding of them, she will need to brew a special potion. To brew the potion she requires one more ingredient, thistle, which can be found growing around the pond to the right of her hut (northeast).
After you’ve gathered enough thistle, bring it to Valka to proceed. She will brew the potion and then leave it on the side for you to drink when you’re ready. When you drink the potion you will be transported to a representation of Asgard. A cutscene will begin and you’ll have a few dialogue options, none of which have any significant impact. During the cutscene it becomes clear that Eivor is envisioning himself as Odin, referred to here as Hávi. When the initial cutscene in Asgard is over, you can choose to stay and pursue the Asgard arc, or you can leave Asgard as soon as possible by following the steps below.
How to Leave Asgard
If you want to leave Asgard as soon as possible, head southeast from your position, behind the throne, and use the teleportation platform. This will transport you southwest of the throne, and beneath it.
From the teleportation platform, head northeast to the Great Hall. Here you will meet a number of other deities including Tyr, Thor, and Freyja. They are discussing plans for the defence of Asgard following recent attacks, and as a representation of Hávi (Odin) you are in a position of authority to assert what should be done next. A plan is proposed to meet the enemy on the rainbow bridge, Bifrost, which connects Asgard to Midgard. At this point you can choose to fight alongside Thor, Tyr, or Freyja on the bridge.
After choosing your companion, head northwest to the bridge. You can fight as many giants as you wish on the bridge, but ultimately this won’t do anything to progress the quest. Instead, you should continue across Bifrost to Heimdall’s Tower, where you can close the gate to stop the flow of enemies. When the gate is closed you’ll hear Loki speaking with a man known only as The Builder. Walk over to them and go through the motions of dialogue.
After the cutscene, you will now have the ability to Wake Up and travel back to Midgard at any time. To do so, open your map and select the eye icon located east of Heimdall’s Tower.