Shamanic Travel
Those of us who study Shamanism, seek to travel to the 9 worlds: Nifleheim, Helheim, Svartleheim, Jotunheim, Vanaheim, Midgard, Muspellheim, Ljosalfheim, and Asgarđr.
The worlds can be actual places as well as states of being. A Shaman first starts thier journey while in dreams and visions and if they are open to growing in New ways, they can learn to travel anytime at will.
Runes can facilitate this travel. The sounds have a way of changing the states of one's soul. It has been my experience that Galdr of the Futhark morning and night helps in greater control of this travel (one can be caught unawares, sometimes).
The side effect of such magic is that the Shaman is able to access magic and wisdom from all worlds, giving them a more balanced insight into themselves and others.
Travel is born out of connection. You learn travelling by opening your heart to a Shaman. Gebo is the Rune that facilitates this.
Helheim is the place where Gods die in the heart of man. In that world, the Gods are "covered" or "hidden" by man's disbelief. Many people walk our very streets and while thier body is in Midgard, thier soul is already in Helheim.
The journey out of Helheim begins with opening one's heart to a shaman...and if one does not know a Shaman in human form...
There is always ODINN.