"Clouds and thick darkness surround him; righteousness and justice are the foundation of his throne." Psalm 97:2 (NIV)
Dark energy and dark matter are beyond the electromagnetic spectrum. They have to be inferred by their effects on visible objects and cannot be detected directly. It is possible that they may never be detected directly.
How similar this is to God himself. We cannot see him directly nor perhaps, will ever be able to do so, for God is invisible. [Rom. 1:20, Col. 1:15, 1 Tim. 1:17] Nevertheless, we infer his existence from what we perceive in ourselves when we have a positive reaction to him. We perceive him indirectly as we contemplate his creation. We perceive him indirectly as we read the bible, as well.
Scientists accept the possible existence of dark energy and dark matter on faith, in a way. It is quite possibly the only explanation to explain why the visible universe doesn't fall apart or fly apart. Something we cannot see is holding the visible universe together. In the same way we accept God's existence on faith, so our world, and our place in it, doesn't fall apart or fly apart.
It is said that the .04 percent of the visible universe is truly inconsequential when compared with the remaining .96 percent of the "invisible" dark energy and dark matter components of the universe. It is also said that, potentially, dark energy and dark matter particles are bombarding our bodies constantly and we are oblivious to their reality.
Whether we choose to believe in God's existence or not, his sustaining power is also constantly bombarding our bodies and minds and our visible world with his perfect essence.