The missing attribution to a common quotation from Emily Dickinson – and the unquoted half of the sentence

The other day, I came across a quotation attributed to Emily Dickinson: "To live is so startling, it leaves but little room for other occupations." I wondered, first, if the attribution was correct, and secondly, where she said it. Unfortunately, the quotation is pervasive on the internet with no further information, but eventually I thought of checking Wikiquote, which says it's from her letters. After more digging, I found it in a letter to Thomas Higginson in 1872; the rest of the sentence never comes up when it's quoted: "To live is so startling, it leaves but little room for other occupations though Friends are if possible an event more fair." (Andrew Shields, #111words, 27 November 2022)