Ta.nhaasa.myojana Sutta

Bhikkhus, I do not perceive any single fetter other than the fetter of craving by which beings are so tied and for so long a time run on and wander in samsara. It is indeed through the fetter of craving that beings are tied and for a long time run on and wander in samsara."��A man companioned by craving�Wanders on this long journey;�He cannot go beyond samsara�In this state of being or another.��Having understood the danger thus -That craving is the origin of suffering -A bhikkhu should wander mindfully,�Free from craving, without grasping.