Wow,this is really going to crack my brain as I have to read twice and still I will be looking like someone who Is going to sit on the fence here,cause to me this is really tricky.
Happiness can come in two ways,the mind thing and a journey in terms of the results gotten on a particular project.
Many tend to keep their Self happy irrespective of what they are facing and that is where the mind comes into play, mind you this is my opinion,we have people that ad encounter a lot of challenges and difficulties in life,but they choose to be happy cause they have this positive mindset about life and it happing.
On the other side people get happy,when they completely achieved success on a project or assignment.
So to me it depends on how it comes to an individual or the angle we are seeing it from