In this video Sadhguru speaks about Siddhasana and says "there is a point on the left heel that today medical sciences are calling it as the Achilles" and after some time he says "you put your Achilles to what is called as muladhara or the perineum in your body".
Now see the image human foot anatomy.
All these days I was putting heel bone(calcaneus) to perineum for doing siddhasana. But here Sadhguru says Achilles. Which is the right thing?
Is he calling the hell itself Achilles tendon?
Or the image is wrong?(this less probable as there re many images in google showing the anatomy this way)
Or does Achilles tendon extends till the middle of the heel? As its called calcaneal tendon and the heel bone is called calcaneus.
Or is the Achilles exactly present at the place where its marked in the image? if so how do you put it to perineum? And this also contradicts Sadhguru as he says "there is point on left heel"
Note: As yoga is not so popular in fitness stack exchange community, I have also asked the same question in Quora: https://qr.ae/TUhmRz