I feel like this song could also speak on addiction. As he is referring to not feed it or give it attention. He could be explaining himself as the addiction. He could take on the form of a drug or any form of addiction. He says that "I will come back" and addictions can haunt you over time and many opportunities may come up to feed that addiction. By saying not to give it attention he could mean not to think about doing whatever it is or thinking about it so much to the point that it encourages them to do it again.
I feel like this song could also speak on addiction. As he is referring to not feed it or give it attention. He could be explaining himself as the addiction. He could take on the form of a drug or any form of addiction. He says that "I will come back" and addictions can haunt you over time and many opportunities may come up to feed that addiction. By saying not to give it attention he could mean not to think about doing whatever it is or thinking about it so much to the point that it encourages them to do it again.