"Those who cultivate practice by their own realization of the noble path abide in the ease of manifested things and do not abandon skillful means."
This quote comes from the Lankavatara Sutra, or as I like to translate the title, the Sutra of Going Down to Lanka. The line is from Gunabhadra’s Chinese translation 修行者自覺聖趣現法樂住不捨方便 (T16n0670_p0510b29), and it is found in section LXXXII as the sections have been labeled by convention in the English translations by D.T. Suzuki and Red Pine.
D. T. Suzuki's translation:
[Therefore], the Yogins, while walking in the noble path of self-realisation and abiding in the enjoyment of things as they are, do not abandon working hard and are never frustrated [in their undertakings].
Therefore the practitioners who cultivate their own realization of Buddha knowledge dwell in the bliss of things as they are and do not abandon their practice.
The truth is that both before and after awakening, we, the living, always abide in manifested things. But before awakening we conceive of life as abiding in the suffering (duhkha) of manifested phenomena, while after awakening we perceive life as abiding in the ease-and-comfort (sukha) of appearing phenomena. What is the difference? When we perceive manifested things with the dualistic filters of cognitive consciousness, such as "good and bad", "right and wrong", etc., then our axle-hole is off kilter and we are in for a bumpy ride. When the axle-hole is centered without the distortions of bifurcated and polarized conceptualizations, then we abide in ease and comfort as we ride through the very same landscape.