Christian spirituality is not prayer. It is not even meditation.
Prayer is prayer, as breath is to the lungs, so prayer is to the soul, life from above.
Meditation is meditation, as music is to an instrument, so meditation is to the mind the complexity of perfect order, the songs of angels.
Christian spirituality is the strategy that manages the inner world, it is, for example, knowing that in intending to be holy, I can become so, and in fighting an emotion it only becomes inflamed, though saying it to God keeps it at bay. Christian spirituality is far more, including an infinitude of ways within the Way.