Concentration of the Mental Faculty

Venerable Master Kuiji, in his previous life, entered samadhi for thousands of years. How could he remain in samadhi for thousands of years with an unsettled manas? This samadhi did not involve the six consciousnesses; otherwise, it could not have lasted so long. The meditative attainments of non-Buddhists are also formidable, enabling them to enter samadhi for eighty thousand great kalpas. This simultaneously demonstrates that the manas corresponds to the mental factor of concentration.