We oftentimes see the analogy that life is like a train.
We are headed to "a destination", and "people come and go".
But these are all wrong assumptions about life that potentially insinuate that we cannot assert power over our own life.
Today I would like to change the narrative.
Life is a farmland that we maintain; we don't have to have a destination, and we have a say on whom we attract into and expel out of our lives.
Your analogy between spending a life and managing a garden rectifies these misunderstandings. The ends of our lives are all about tombs but this fact, definitely, is neither suggesting that we cannot change anything during or after our lifetimes, nor implying that we have to rush towards the destination all the time without rests. I tend to compare life to a voyage (which is more exciting than being a gardener anyways), and during the voyage the transportation way is not limited to merely the train, or the ship, or the vehicle, etc. We can get on and off at any times, make changes to the path, find the right person to meet, etc. It makes me think of the movie, The Legend of 1900, that even staying on a cruise for the whole life can still make a huge difference to the world, see different things, and make people memorize you, if and only if you like it and choose to do it.