Bon Iver - Re: Stacks Lyrics Meaning

Falling in love is like gambling; there is always a risk of getting a heart break. You can commit to a person, and still not be able to hold onto the relationship.

This person has just lost a lover, and is starting from scratch ("excavation") by starting a new relationship.

You could commit in a relationship thinking that you would be with that person forever, but in the end, you get nothing in return, only hurt feelings and memories. <"All my love was down, In a frozen ground..." >

He/she is still trying to figure out the reason for losing this love .<"whatever could it be that has brought me to this loss">

There's a hint of nostalgia here. The person is holding onto memories while moving on by starting a new relationship after his/her lover has recently left. <"It's the sound of me unlocking and you lift away" >

There is no hatred involved, just sadness, and that this person will always cherish the memories of his/her lover. <"your love will be safe with me">