That's what one Viking said to another, in code, with runes. And, in the process of figuring all of this out, we find a universal truth in communication and in human interaction--nothing changes. Simple emotions and sentimental ideas worked a thousand years ago and they work today.
The Jötunvillur code is actually fairly easy to understand. The complexity comes from not having a complete picture of how to break it out:
It's a substitution code that can be easily broken if you know the sounds of the letters. This is one of the most common ciphers, and it's not uncommon to find these forms of communication in old or ancient texts. I think what made it difficult to break was the fact that we don't converse in the language anymore.