Existential prayer is one form of mystical contemplation. It is the prayer of just being. It has few words; and perhaps it has no images at all. In this prayer I just AM -- like the flower of the field or the birds of the air; and by just being I give glory to God.
We all have rituals in our lives; we have simply forgotten that in our original way of living on the earth, these rituals were sacred, not secular. These rituals were designed to remind us over and over and over again of our true relationship to life: that of a grateful, amazed supplicant at the feet of Mystery.