It is almost impossible to be an effective instrument within our own families, with our neighbors, or even from the pulpit unless we can discern the whisperings of the Holy Ghost. If we want to experience the inexpressible joy of gospel living and feel of Christ's atoning mercies, obedience to all, and not just a select few, of God's commandments is the only way. When obedience becomes a quest, it is no longer an irritation. Relief Society can help us abide by divine laws and become closer to God. When we unitedly serve each other and all of our Father's children, we can be instruments in the hands of God, not only to relieve physical suffering but, more importantly, to succor those who are in need spiritually.
Service is a key to being an effective instrument.
The sons of Mosiah chose to serve the Lamanites rather than assume leadership of their father's kingdom. And in many instances, their service softened the hearts of the Lamanites and made them receptive to the gospel. We, too, delight in service and good works. Service softens and opens hearts, for it is truly the gospel in action. I know of a ward in Arizona where three families are currently investigating the Church, all as a direct result of compassionate service rendered by the Relief Society.