End: The energy boundary at which a body can extend itself no further and gives way to thought. From ends, it can extend itself into the farthest distance, into distance itself.

A North Icelandic cape on the Greenland Sea

This head (cap) reveals how ending energy creates a forehead; when you’re in battle, you’ll want to get the thing out there, to lead the body. Holding back will just not do. Of course, here you might meet your end as well.