Illusion has many faces. At each level it appears as precisely that insurmountable obstacle one hoped never to encounter. For each person it appears as just that intractable issue one wished never to address. Sometimes illusion takes the form of distractions of the mind; at other times it takes the form of agitation of the heart. At all times it mirrors the fiery, ever-turning sword of G-d placed at the entryway to Eden to guard the path to the Tree of Life.
(Rabbi Moshe Mykoff)