Duality/Activation Functions and Energies

[thePirate]

k, so I've been trying to get a handle on how the dual and activator's functions work with each other. now its clear to me that both relations have an energizing effect, but how to differentiate the two?

Some people say it comes from the HA, others the 1st/5th functions, and still more say 2nd/6th.

What functions are working together to achieve this this 'energy', and how are the energizing effects of activity/duality different? I know activity tends to wear you out and duality is more 'comfy' so I imagine it being more low-key; but does this apply across the board? Its hard imagining Se for instance to be low-key. More specifics would be nice.

How does it feel when you experience it (a compare/contrast description between both relations)? What is it about how the function order in duality as opposed to activity works that makes it better? Basically, looking for clear cut ways to differentiate the two.