All Truths Cannot Be Realized Without Samadhi

In the span of a single kshana, 81,000 mind-seeds arise and cease. There are 90 kshanas in the snap of a finger, and a snap of a finger lasts at most one second. After the manas (mind faculty) contacts the mano-dhātu (mental objects), it causes the arising of manovijñāna (mind consciousness), which contacts and discerns the mano-dhātu. This process requires not even 0.01 seconds, nor even half a kshana. Such a brief interval is likely immeasurable by instruments; only in exceptionally profound states of meditative concentration (dhyāna), where the mind consciousness becomes extremely subtle, can it be perceived. Prior to the Eighth Ground Bodhisattva, it is fundamentally impossible to perceive this. Therefore, there exist an immense number of truths about reality that cannot be realized without profound meditative concentration. To seek to realize any aspect of the Dharma without cultivating meditative concentration is impossible. Without meditative concentration, one relies solely on inference, conjecture, and imagination. What is deduced through reasoning and analysis yields no meritorious benefit or practical attainment and cannot resolve doubts.