Last night at Newbury Monastery we had a sutta reading and discussion of MN53. There was a question about the following line:
Relying on this supreme purity of mindfulness and equanimity, that noble disciple realizes the undefiled freedom of heart and freedom by wisdom
I think some teachers regard freedom of heart and freedom of wisdom as two different ways of realizing the Dhamma. Is this the case?
The suttas are a little ambiguous on this point. Generally speaking, the two are presented together, and represent two aspects of arahantship, resulting from the paired development of samatha and vipassana. However in a few places they seem to be at least partially distinguished, correspodning roughly to those who prioritize samatha and those who prioritize vipassana.
In addition, “release of heart” is used in a distinct sense to refer to samadhi, especially the brahmaviharas.
I hope this helps.
Thanks for your erudition.