Hobby or Occupation?

I'm a creature of this habit, because I have been advocating that the technology required in Radio Control Model Airplane field is applicable in my business and it is very helpful from some different point of view. For example, in the situation of my business to be required dynamic eyesight with ultimate concentration, remembering a contest flight scenery that I had participated before, a similar concentration technique plays a great part of actual business procedures. In another words, technology, know-hows and back ground, more over, fundamental ideology might have been nourished on myself, not by some ordinary educational program but by the experiences obtained while I was lost in my hobby field. The border line to divide my business and my hobby is not always clear, so my occupation does not always occupy myself with slavery tiresome works, on the other hand, often my hobby work suffers hard, so to speak some complicated state in my mind is continuing for long time.
Anyway, my intention to lead my life is to spend interesting and enjoyable life keeping on smiling till I go up to the Heaven.