Turning stones into bread = material temptation
Throw self off cliff = security temptation
Have dominion = power temptation
These scriptures are about the temptation not to be a good human being. I think they are about the temptation not to be a human being at all. As far as I can tell, what Adam and Jesus are both tempted by is the chance to play God.
In many churches, Lent begins with a sooty forehead, as believers kneel for the Ash Wednesday reminder that we are dust, and to dust we shall return. it is not meant to depress or frighten us, but simply to remind us who we are: human beings, mortals, not God.
The point is, God drew a line in the garden of Eden and said, "Human beings on this side, God on this side. Tree of life on your side, tree of the knowledge of good and evil on my side. Stay on your own side of the line if you know what's good for you."