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In ancient times, adhyayana was done by brahmanas with a view for the welfare of all the creatures; kshatriyas for delivering their duty as protectors, and vaishyas as means of livelihood. [[Ayurveda]] is studied for the achievement of all virtues (dharma), wealth (artha), and pleasure (kama). [Cha.Sa.[[Vimana Sthana]] 30/29]

In ancient times, adhyayana was done by brahmanas with a view for the welfare of all the creatures; kshatriyas for delivering their duty as protectors, and vaishyas as means of livelihood. [[Ayurveda]] is studied for the achievement of all virtues (dharma), wealth (artha), and pleasure (kama). [Cha.Sa.[[Vimana Sthana]] 30/29]

==I. Preparation and time to start study==

==Preparation and time to start study==

The benefits of weapons, treatise, and water depend upon the qualities of their users. [Cha.Sa.[[Sutra Sthana]] 9/20] Therefore, the pupil should have some qualities for adhyayana. The healthy pupil should concentrate only on adhyayana. He should study at dawn or while a portion of the night is left (brahma muhurta). After finishing essential routines and ablutions, he should offer prayers to the God, sages, cow (as a sacred animal), brahmanas, teacher, elderly, and knowledgeable persons. They should sit in an even and clean place for study. [Cha.Sa.[[Vimana  Sthana]] 8/7] In some recent studies, it has been found that people rising in brahma muhurta had improved their ability to recall than the persons who wake up after sunrise.<ref>Kumaran VS, Raghavendra BR, Manjunath NK. Influence of early rising on performance in tasks requiring attention and memory. Indian J PhysiolPharmacol. 2012 Oct-Dec;56(4):337-44. PMID: 23781653.</ref>

The benefits of weapons, treatise, and water depend upon the qualities of their users. [Cha.Sa.[[Sutra Sthana]] 9/20] Therefore, the pupil should have some qualities for adhyayana. The healthy pupil should concentrate only on adhyayana. He should study at dawn or while a portion of the night is left (brahma muhurta). After finishing essential routines and ablutions, he should offer prayers to the God, sages, cow (as a sacred animal), brahmanas, teacher, elderly, and knowledgeable persons. They should sit in an even and clean place for study. [Cha.Sa.[[Vimana  Sthana]] 8/7] In some recent studies, it has been found that people rising in brahma muhurta had improved their ability to recall than the persons who wake up after sunrise.<ref>Kumaran VS, Raghavendra BR, Manjunath NK. Influence of early rising on performance in tasks requiring attention and memory. Indian J PhysiolPharmacol. 2012 Oct-Dec;56(4):337-44. PMID: 23781653.</ref>