Reflecting anew today, I'm struck by how this quote speaks to different kinds of knowledge. There's the technical knowledge of how to plant a tree - the right depth, soil, season - but then there's this deeper, almost mystical knowledge that emerges from the intentionality behind the act. The quote suggests that the second kind of knowledge, this wisdom about meaning, can only arise through the practice of the first.
I'm also seeing a new layer about community and interconnection. While the quote focuses on an individual planter, the act itself assumes a continuity of human presence, a faith in the ongoing story of humanity. To plant a tree for future shade is to believe in the persistence of community, even if we won't be part of it.
The word "started" feels particularly significant today - it implies that understanding life's meaning isn't a destination but a journey that begins with this recognition of our role as temporary contributors to an eternal process. Perhaps the wisdom deepens not through further intellectual understanding, but through finding more and more ways to plant trees we'll never sit under - metaphorically speaking. Each act of selfless contribution becomes another step in this ongoing journey of understanding.