1. Sūka Sutta.– If a spike of bearded wheat or barley is badly grasped by hand or foot, it does not pierce the hand or foot or draw blood; but it will if firmly grasped. Similarly a monk with misdirected view and misdirected practice will not pierce ignorance or give rise to knowledge; but it will if well directed. S.v.10.
2. Sūka Sutta.– If a spike of bearded wheat or barley is firmly grasped it can pierce the hand or foot and draw blood. Similarly, a monk with rightly directed view and practice can pierce ignorance and give rise to knowledge. S.v.48.
3. Sūka Sutta.– Similar to (1) above, but with mind (cittena) instead of view (diṭṭhena). A.i.8 f.