Fire Vajras and Portals in Body Symbolism
Fire up the dog ma. Fire is usually a bottom-center portal symbol but image A is also using it at the top.
Image A's hand is a horizontal plane portal and the fire-vajra shows energy flow going up and down (after it exits horizontally).
Image B seems simple with a bottom-center and top-center portal. It also has a barrier around everything made like a picture frame, and the flower symbols are the portals doing the barrier penetrations. The center torus has concentric rings, which I personally call strata layers. Notice the half-overlapping concentric circles around those flowers. Half-overlapping tori is a way of making a portal (and I am speaking symbolically, but suspecting it may be literal too, for those with superconducting technology.)
Image C's guy is holding a vajra- ish symbol with both up and down flow after exiting horizontally at the hand portal. There is a floaty person above that, showing up direction, and a bull head below that, showing downward direction.
Image D at the top is using a "half-head" as a portal, which I think was on one of my recent posts.
Simply, a human body can be used (not literally, symbolically) as the center flow path of energy through a torus, just like the South-to-North flow of magnetic flux.
Next time you see a phoenix in a fire, or burning sinners in a crocodile's open mouth, relax and smirk. Simple knowledge of portals is easier with no drama.