"Needs"

Paul tells the Phillipians (3:17-4:9) to "present your needs to God in every form of prayer and in petitions full of gratitude." However, I feel wants are sometimes confused with needs, so how does one really know what to pray for? Since it is the Holy Spirit that helps us pray, if our "needs" would fall under the category of one or more of the gifts of the Holy Spirit, it would be safe to say we are praying for our needs because we always need the gifts of the Holy Spirit and they will always be given to us: wisdom, understanding, knowledge, courage, counsel, piety, and fear.