"We would rather die in our dread than climb the cross of the moment and let our illusions die."
~WH Auden ~
I am willing to bet that all of us have things in our lives that we dread- and I don't mean once-in-a-while type things either, but regular, routine elements of our everyday experience. We anticipate the future with a certain amount of exasperation before it even begins; perhaps because the idea of effort is far less appealing than the effort itself. But in truth, once we begin almost anything, we are supported by momentum, increased circulation, and a sense of progress.
So I think it's really our minds, fundamentally, that take us hostage with dark thoughts, and we fall, as if under a spell. But we don't have to. We can learn to catch ourselves in dread-mode and open our minds to let light in; and awaken to the possibility that things will turn out better than we can understand in advance.
I stop spoiling my future with negative thoughts.