"Chase it. Embrace it. Go BE the YOND."
The word yond (interchangeable with yonder), by definition, points to a location. More specifically, it points to a more distant location than one’s immediate surroundings.
My take on the word, however, is that it simply means to endlessly pursue that which awaits on the distant horizon.
When you get to the top of that mountain, don't look down. Look yond, and continue on!