A silent, optional prayer that is open to all denominations is appropriate for all occasions. Some Christian prayers that are used for many occasions include the Serenity Prayer and Prayer for Peace. The Lord's Prayer, the Twenty-Third Psalm and the Irish Blessing are all popular prayers with multiple uses.
In a prayer for all occasions, the prayer leader should open by asking those present to connect with their version of the divine, whether it be God, Allah, the Holy Mother or simply Spirit. The prayer should not be focused on any religious scripture or doctrine to keep it open for all in attendance. Instead, it should focus on the situation at hand, positivism and gratitude. Celebration is also appropriate to include when it is relevant to the event.
Additional prayers appropriate for multiple occasions include the Prayer for Healing, the Morning Prayer, Prayer of St. Francis, Christ Be wth Me, the Jesus Prayer and the Children's Bedtime Prayer. Table blessings, such as the traditional, "God is great and God is good, and we thank God for our food; by God's hand we must be fed, give us, Lord, our daily bread," are appropriate for many occasions that include a meal.