But then, a mendicant grounded on these five things should develop four further things. They should develop the perception of ugliness to give up greed, love to give up hate, mindfulness of breathing to cut off thinking, and perception of impermanence to uproot the conceit ‘I am’.
Venerable Meghiya, while attending on the Buddha, wants to go off and meditate in a forest alone. The Buddha discourages him, but he goes anyway. When his meditation doesn’t go well, he returns chastened to the Buddha, who teaches him the importance of getting the fundamentals right.