Over the years, we may have done a lot of spiritual practice, performing prostrations, making offerings, and meditating on the yidam deities, and we hope that blessings will come to us from doing all this. Yet we have neither tamed nor transformed our minds. The fundamental reason for our lack of progress is that we do not know the essential point of how to practice the Dharma. What is the real way to practice? How is it that Dharma turns into true Dharma? The key point is that actual practice happens through reversing our attachment to samsara.
17th Karmapa
source: http://kagyuoffice.org/the-willingness-to-jump-in-and-help/
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