Those who are carried by grace might not need spiritual
practices.

But the majority of people are stopped by obstacles from
natural dispositions and traditions, as well as obstructions by
external effects. They need an inward struggle within
themselves and a struggle against the wars that come from
the outside.

If one trained himself practically to be on the good path and
followed it, he then has to stabilise himself and not to turn to
his old behaviour. The love of good will then become part of
his nature. That needs time and work of grace.

—H.H. Pope Shenouda III, Words of Spiritual Benefit Vol. IV