The elder futhark is designed as an initiation process of human being.
The 24 runes divided in 3 sets of 8 runes each:
The first group is the physical level
The second group is emotional/psychological level
The third group is the spiritual level.
Initiation of a spiritual warrior.
The mind is an intersection between the higher spiritual realm and lower physical realm.
The second group is about psychological and emotional realm of refinement of the raw physical matter, process, focus of within.