顶礼上师三宝！🙏
我们常说，显宗要三大阿僧祇劫才能成就，密宗一刹那可以成就的原因是密宗抓到了差异分别这一切法的要点，当下成办解脱。
Prostrating to Guru and the Triple Gem!🙏 
We often say that from the view of Exoteric Buddhism, practitioners need three countless eons to attain enlightenment while from the view of Esoteric Buddhism, one can attain accomplishment in an instant. Its reason is that Esoteric school has grasped the key point of distinguishing and discerning all dharmas, thus liberation can be attained in the moment.