Many excellent posts.
We practice to become enlightened.
Ref the siddhis / skillful means, resulting from practice, perhaps these are the "spare change" of the the benefits of practice and not the goal.
Just woke up from a long after-lunch nap. I am an old guy. Naps-r-us.
It's one of those days in Tuscany when the sky is touching the earth. Looking out my window is like a Chinese painting with olive trees blurry in the heavy mist. Beyond a short distance everything is mist. Sheep graze, in the near meadow, white blurry forms moving in the white mist. It's nice & cozy but I know it will get cold later and I will need to light a fire. Luckily I have an inside store of dry firewood that the mist has not penetrated. Just have to clean all the junk away from the pot bellied stove. The lightning storms have not knocked out the electricity, today, and I can connect the computer. Amazingly my radio connection goes right through the mist and reaches Dharma Wheel. Hooray for technology. ET phone home.
So what does all of this blah blah have to do with rigpa vs. nature of mind? Good question.
Looking out the window (with awareness / instant presence) is nature of mind, even if I/you don't look. Observing yourself, (in a non-dual way) looking out the window, or observing not looking (in instant presence) is rigpa. Being the mist and the fuzzy olive trees, and the observer, both without name, are the non-dual appearances, the display of the natural mind. In the clarity and luminosity of instant presence, everything is perfected: everything is OK, just as it is.
Relaxing into this, there is nothing to say or to be done, and the question of “Nature of Mind / Rigpa” dissolves into contemplation: yet saying everything and doing everything is also OK.
For anyone engaged in striving (seeking anything: power, money, good health, gain, praise, fame, and happiness, love, etc. (especially the etc.)) you can say to them that the dharma bozo, old bob, says that the first step beyond this endless activity, is to just relax. Constant struggle, and burn out, in the red dust of the world isn't helpful in solving the problems of life. Letting go of everything, in contemplation, even just for a moment, provides a base of unattached awareness / energy from which all actions can be more easily accomplished. Just stop and relax, sinking into this stopping. Just stop (with unintentional awareness).
Look out the window; observe yourself (non-dual) looking out the window, even for a moment, (maybe make some tea) observe a gentle breath, and then attend to what needs doing, with that doing / attendance, informed by the empty space of that stopping / observing. Then you are that empty space combined with your activity. With that perspective, things are different and you have changed, and everything is much lighter.
Then accept that whatever appears to mind, body, emotion, is just fine, as it is. Relaxing into this, is the natural mind. Being aware of this, in a non-dual way, is rigpa.