I think it's about somebody who left chasing their dream "deer"
In the first and second verses the author says that he missed this person when she/he came to visit and now that person is once again gone chasing after "deer" and he (the author) fears for this person.
In the third and forth verses he describes these fears a bit saying how hard it is to chase your dreams and more often than not you find yourself lagging behind.
When he says "the sea isn't mine" he means he cannot help or advise this person across the sea, for he does not know how things are there, compared to things in his own woods; the sea represents distance.
The fifth verse can be interpreted as following a dream so far that it twists into something that you never wanted in the first place or lagging so far behind that your dream is lost.
I think it's about somebody who left chasing their dream "deer"
In the first and second verses the author says that he missed this person when she/he came to visit and now that person is once again gone chasing after "deer" and he (the author) fears for this person.
In the third and forth verses he describes these fears a bit saying how hard it is to chase your dreams and more often than not you find yourself lagging behind.
When he says "the sea isn't mine" he means he cannot help or advise this person across the sea, for he does not know how things are there, compared to things in his own woods; the sea represents distance.
The fifth verse can be interpreted as following a dream so far that it twists into something that you never wanted in the first place or lagging so far behind that your dream is lost.