I would be happy to hear your understanding of upekkhaa. How do you
understand the difference between upekkhha-indriya which is vedanaa,
and upekkhaa as a factor of the fourth jhaana, the brahma-vihaara and
a bojjhanga.
Do you think upekkha-indriya has a different quality than upekkhaa in
other contexts?
Is upekkhaa-indriya can also be described as a physical sensation,
while at other contexts it is a skillful mental quality?
Any comments will be very helpful.