A contemplative practice is any act, habitually entered into with your whole heart, as a way of awakening, deepening, and sustaining a contemplative experience of the inherent holiness of the present moment. The critical factor is not so much what the practice is in its externals as the extent to which the practice incarnates an utterly sincere stance of awakening and surrendering to the Godly nature of the present moment.
Cultivating our wisdom is one of our most important tasks. If we don't spend enough time alone listening to the counsel of our hearts, then we will never become wise. If we don't spend enough time in the presence of others who try to walk a path of heart, we will never become wise. If we do not cultivate, through prayer or meditation or spiritual practice, a stronger heart that can fly and endure, then we'll never become wise.