If it is true that everything is a lie (an illusion), then the statement contradicts itself by being true, thus making the statement false by involuntarily proving truths existence.
If it is false that everything is a lie (an illusion), then it again simply proves truths existence.
Either way, Truth is proven to exist.
In life, “the illusion” is often prettied up and designed to sell, and at that, at discount prices. People bite at the bargain, It seems easier and cheaper, so their off with their bargain, and go down this long winding road until they eventually are lost, and finally reach a dead end, the end of “the illusion.” They are then forced to turn back, and back track to where the road originally split, sometimes taking them what seems like an eternity just to get back to that fork. Once, they are there. Then, they take that road, yes, the one less traveled, the one that leads them to the way of enlightenment, the way they wish they would have traveled to begin with, the way their hearts originally pointed to, the way of the truth.