"Equanimity arises from the power of observation — the ability to see without being caught by what we see.

We might understand this as “seeing with understanding.”

As a form of equanimity, this “being in the middle” refers to balance, to remaining centered in the middle of whatever is happening.

A simple definition of equanimity is the capacity to not be caught up with what happens to us. We can practice with equanimity by studying the ways that we get caught. Instead of pursuing the ideal of balance and nonreactivity directly, we can give careful attention to how balance is lost and how reactivity is triggered."

A perfect balance - Tricycle: The Buddhist Review - Winter 2005