Each tribe of Israel sends a man to explore the Land of Canaan and report back to the people. They return with grapes, pomegranates and figs after forty days of exploration, but they bring bad news: although the land is very good indeed, the cities are fortified and inhabited by very strong people. Kalev, son of Yefuneh, and Yehoshua, son of Nun, however, reject this idea: “We can certainly do it”, they say. God rebukes Israel for its constant distrust and warns Moses that this generation will not enter the Promised Land: it will wander in the desert for forty years. God also instructs about the tzitziot (fringes on the corner of the garments).
The expression “it depends on the eye that looks at it,” or similar expressions, show us that each one of us has more than one point of view. Try looking with just one eye while covering the other with your hand; now do the same with the other eye... you will notice that what you see with just one eye is not exactly the same as what you see with the other.