Dreams are sweet, until they’re notMen are kind, until they aren’tFlowers bloom, until they rot, and fall apart
This means that things along with people can and will change. While they may seem sweet and this great thing eventually they have true colors which might be what it once appeared.
Farewell To all the earthly remains No burdens No further debts to be paid
Since this person is going to the underworld they are saying goodbye to all of their possessions as they cannot take their property with them. They are also stating how they no longer have to deal with any burdens they may have had along with their debts.