Though from beginningless samsara, all beings have assiduously chased after outer objects to procure happiness and remove suffering, these hopes remain unfulfilled. Knowing that one’s mind is the real source of all happiness and suffering, the Buddha taught countless means to tame one’s mind. With the Mind Training instructions, one uses any and all tribulations as means to gather the accumulations and remove obscurations. Merely adopting these mental attitudes allows one to use negativities for enrichment. They are pith instructions of the Mahayana.