In the Buddhist tradition, the five hindrances (පඤ්ච නීවරණ; Pali: ) are identified as mental factors that hinder progress in meditation and in daily life. In the Theravada tradition, these factors are identified specifically as obstacles to the jhānas (stages of concentration) within meditation practice. Within the Mahayana tradition, the five hindrances are identified as obstacles to samatha (tranquility) meditation. Contemporary Insight Meditation teachers identify the five hindrances as obstacles to mindfulness meditation. The five hindrances are: Sensory desire (kāmacchanda): seeking for pleasure through the five senses of sight, sound, smell, taste and physical feeling. Ill-will (vyāpāda; also spelled byāpāda): feelings of hostility, resentment, hatred and bitterness. Sloth-and-torpor (thīna-middha): half-hearted action with little or no effort or concentration. Restlessness-and-worry (uddhacca-kukkucca): the inability to calm the mind and focus one's energy. Doubt (vicikiccha): lack of conviction or trust in one's abilities. According to Gil Fronsdal, the Pali term nīvaraṇa means covering. Fronsdal states that these hindrances cover over: the clarity of our mind, and our ability to be mindful, wise, concentrated, and stay on purpose. According to Rhys Davids, the Pali term nīvaraṇa (Sanskrit: nivāraṇa) refers to an obstacle or hindrance only in the ethical sense, and is usually enumerated in a set of five. In the Pali Canon's Samyutta Nikaya, several discourses juxtapose the five hindrances with the seven factors of enlightenment (bojjhanga). For instance, according to SN 46.37, the Buddha stated: Bhikkhus, there are these five obstructions, hindrances, corruptions of the mind, weakeners of wisdom. What five? Sensual desire... ill will... sloth and torpor ... restlessness and remorse... doubt... There are, bhikkhus, these seven factors of enlightenment, which are nonobstructions, nonhindrances, noncorruptions of the mind; when developed and cultivated they lead to the realization of the fruit of true knowledge and liberation.