Drubwang Tsoknyi Rinpoche (Schmidt, 2002: p.38) states: Trekchö is the thorough cut of cutting through, cutting the obscurations completely to pieces, like slashing through them with a knife. So the past thought has ceased, the future thought hasn't yet arisen, and the knife is cutting through this stream of present thought. But one doesn't keep hold of this knife either; one lets the knife go, so there is a gap. When you cut through again and again in this way, the string of thought falls to pieces. If you cut a rosary in a few places, at some point it doesn't work any longer.