Faith-belief that is not based on proof.
Kant-To have faith ... is to have confidence that we shall reach an aim that we have a duty to further, without our having insight into whether achieving it is possible.
Kierkegaard-To hell with the rational, here is my Unscientific postscripts and all. This is your sickness until death- Existence/existents is risk. To proceed, to live, is to encounter the unknown- the superknowable and the anxiety that then comes from it. Faith is the tool one uses to proceed. It is all that is left once one knows they are alone and not immune to causation/phenomenon. We only know once it is over -that the act of becoming (potential/actual) has come to pass.
Dostoevsky- Faith is intuitive truth (of course intuitive knowledge is another thing

for after it's truth is
Molchanie ) It is metalogic, metarational. It is the first needed step toward an experience of God.