If the root of a tree is medicine, then the fruit will be medicinal. If the root is poison, there will be no doubt about the fruit. Meritorious and unmeritorious qualities follow upon ones attitude and intention; they are not derived from physical practices in themselves.
You don’t have to do anything with your mind, just let it naturally rest in its essential nature. Your own mind, unagitated, is reality. Meditate on this without distraction. Know the Truth beyond all opposites. Thoughts are like bubbles that form and dissolve in clear water. Thoughts are not distinct from the absolute reality, so relax; there is no need to be critical. Whatever arises, whatever occurs, simply don’t cling to it, but immediately let it go. What you see, hear, and touch is your own mind. There is nothing but mind. Mind transcends birth and death. The essence of mind is pure consciousness that never leaves reality, even though it experiences the things of the senses. In the equanimity of the Absolute, there is nothing to renounce or attain.
Motivated by the wish to free all beings, continually, I shall take refuge in the Buddha, Dharma and Sangha, till the essence of enlightenment is reached. With wisdom and with heartfelt love, diligently, for the sake of sentient beings, I shall place myself before the buddhas, and generate the perfect mind of bodhicitta.
~Shakya Shri Bhadra