Some of us have opened the spiritual eyes and then we have also shut them . It’s no big deal because it’s never an end goal. We practice to unfold our true wisdom, not for little skills like that.
If you are greedy for the insignificant, how can you ever get the “big prize”?
Question (follow up):
The opening of the upper dan tian is still very insignificant in regards to our Mahayana practice.
May I suggest that you check your sources more carefully before you believe such non-sense.