The Holy Ghost

Scripture	What the Holy Ghost does	What you must do to receive it
John 14:15-17	Dwels in you to teach you	Be obedient to the commandments.
John 14:26-27	Comforts, teaches, reminds, brings peace	Trust the Holy Ghost
John 15:26-27	Testifies of Christ	Share your testimony
John 16:7-8	Cleanses from sin (Christ had to "go away" in order for the Holy Ghost to be able to come and cleanse them. For what He meant by "go away" was that He had to accomplish the Atonement.	Repent and have faith in the Atonement.
John 16:13-14	Guidance, shows the future as necessary.	Follow the guidance of the Holy Ghost to be able to see Christ again.
Student Manual 24-10	Adds to your natural capacities and purifies them for their perfect purpose	Obedience to the commandments creates holiness of body that allows the Holy Ghost to reside within you and bring out your divine attributes.
Student Manual 24-11	Instructs and enlightens the mind. Gives a greater understanding of God's Plan through personal revelation as you participate in making and keeping covenants (how often has my mind been enlightened while at the Temple?).	Obey the commandments of Heavenly Father and Jesus Christ. Make covenants to obey (Temple Ordinances)
BD Holy Ghost	Witness of truth. Convincing power.	Seek an answer or be willing to receive an answer. Be worthy of the companionship of the Third member of the Godhead. Receive the HG by the laying on of hands. You must speak by the Spirit in order for it to be convincing.
How the Holy Ghost helped the apostles fulfill their missions after the Savior's death and resurection: The biggest way that the Holy Ghost helped them fulfill their mission was to teach them what to say and then testify of the truth to the people who were listening. It also gave them a deeper understanding of the principles that Christ taught. Often He taught them in parables that they didn't understand and right before His Crucifixion He even told them that they couldn't understand everything and wouldn't until after He was gone.
The Holy Ghost has helped me to understand the promises and blessings of the Temple. I am grateful every time I get to go into the Lord's house for I am instructed on the Plan He has for me and for my family. I have a greater understanding of how Christ is my Savior and about how living the Gospel will help me. Even though it is often repetitious each time I go in I hear or see something new. This newness is because the Holy Ghost is teaching me something new because I am keeping my coventants.