Valhalla is an arbitrary location associated with general savagery. Valhalla can be anywhere, but it is typically found at a really fun event or activity with your best friends. When you reach Valhalla, you've reached the emotional or physical peak of whatever activity you are doing.
The "journey" or "ride" to Valhalla is typically the actions (dancing, hiking, drinking, etc.) you and your friends are doing. You will know you've reached Valhalla only upon reflection of your journey.
Walking into a music festival . . ."Let's ride west boys! Valhalla awaits!"
Coming back from a backpacking trip . . . "What a journey, we definitely found Valhalla"
Asking a stranger for directions . . ."Excuse me, do you know which direction Valhalla is?"
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