You might think that once you have received the Dzogchen teachings you will have all kinds of profound lofty experiences, even after just a few days. If you have such high expectations, then when things don’t work out that way, you will begin to doubt the instructions and relax your diligence. Or, if you do develop the slightest hint of renunciation or gain some minor experience or realization, you will only develop pride and think, “The Kagyü, Sakya and Gelug schools have nothing to compare with these Nyingma teachings!” You must avoid developing wrong views such as this and arrogantly supposing that you have gained some special experience or realization. No matter who you are, the ordinary mind is always prone to change and transformation, so you should try never to get carried away.
Even if you were to practise day and night with unflagging diligence for a full twelve years and still fail to have even one good dream, you must never lose heart. Recognizing that this is due simply to the strength of your own obscurations, you must be confident that neither your teachers nor the teachings will ever let you down.
On the other hand, even if you were to make such swift progress that in just a single day you reached the level at which there is nothing further in samsara to be abandoned nor anything further in nirvana to be gained, you should feel no pride, because to do so would only be to invite the demon of obstacles. That is why Jetsün Milarepa said:
When you are approaching the end of the Dharma,
Continue ceaselessly, without any highs or lows,
And without hopes for signs of swift attainment,
Ensure your practice endures as long as you do!
DILGO KHYENTSE RINPOCHE