Rebbe Nachman teaches us that emuna (faith) is an aspect of “A beautiful maiden who has no eyes” (Zohar II, 95a).
We only speak of emuna when the one who believes does not know why he believes. But even so, for the believer himself the thing he believes in is perfectly clear and obvious to him — as if he saw it with his own eyes. This is because his emuna is so strong (62:5).
Rebbe Nachman, see Likutei Moharan I: 62:5
Adapted from Advice – Likutei Etzot #26