Within the framework of the Buddhist Path, reflecting on suffering has tremendous importance because -realizing the nature of suffering, you will develop greater resolve to put an end to the causes of suffering and the unwholesome deeds which lead to suffering. And it will increase your enthusiasm for engaging in the wholesome actions and deeds which lead to happiness and joy.
And for a disciple thus freed, in whose heart dwells peace, there is nothing to be added to what has been done, and naught more remains for him to do. Just as a rock of one solid mass remains unshaken by the wind, even so, neither forms, nor sounds, nor odors, nor tastes, nor contacts of any kind, neither the desired, nor the undesired, can cause such an one to waver. Steadfast is his mind, gained is deliverance.
How does one stay mindful? Where feelings are known as they arise, known as they persist, known as they pass away. Thoughts are known as they arise, known as they persist, known as they pass away. Perceptions are known they arise, known as they persist, known as they pass away. This is how a monk stays awake.
I myself feel, and also tell other Buddhists that the question of Nirvana will come later.
There is not much hurry.
If in day to day life you lead a good life, honesty, with love,
with compassion, with less selfishness,
then automatically it will lead to Nirvana.
He who can curb his wrath as soon as it arises, as a timely antidote will check snake's venom that so quickly spreads, - such a monk gives up the here and the beyond, just as a serpent sheds its worn-out skin.