You need the guiding, revelatory power of the Holy Ghost as you help people be baptized, confirmed, and converted.
You face different needs and circumstances every day. Promptings from the Spirit will help you know what to do and say. As you seek and act on these promptings, the Holy Ghost will magnify your abilities and service to far exceed what you can do on your own.
He will help you in every aspect of your missionary service and your personal life.