How to Make the Manas Constantly Mindful

To make a dharma penetrate deep into the mind, one must enter deep meditative concentration (samādhi), practicing śamatha and vipaśyanā together. By frequently contemplating within meditative concentration, one will form uninterrupted attention (manaskāra), keeping the dharma constantly in mind. The manas will then firmly hold onto this dharma, secretly investigating it, and one day one will penetrate this dharma. Without meditative concentration, the meaning of the dharma cannot penetrate deep into the mind, a questioning doubt cannot form, and there will be no breakthrough; one cannot investigate and uncover the substantive content.