lie:

Pressing in like crushing rocks; this weight we willingly add to our psyche. My son has lied to me and weeps: the discipline as well as the transgression are a heavy burden indeed. I hold him and the breathing calms and we sat together in the relief of truth.

We harvest the bolder from the quarry of deception thinking we can handle it. We say to ourselves, "how much can it weigh?" But under the pressure of its actual weight the burden outweighs us. Or, we break the deception into a thousand smaller fragments and make it a burden in almost the same way.