Preach My Gospel on "How Do I Recognize and Understand the Spirit?"

 The following, taken from "How Do I Recognize and Understand the Spirit?" in Preach my Gospel. It is useful as it shows that Latter-day Saints do not (or at least, they should not) believe that "good feelings merely = the Spirit" but instead, the internal witness of the Holy Spirit is much more profound:

Doctrine and Covenants 6:23; 11:12–14; Romans 15:13; Galatians 5:22–23	Gives feelings of love, joy, peace, patience, meekness, gentleness, faith, and hope.
Doctrine and Covenants 8:2–3	Gives ideas in the mind, feelings in the heart.
Doctrine and Covenants 128:1	Occupies the mind and presses on the feelings.
Joseph Smith—History 1:11–12	Helps scriptures have strong effect.
Doctrine and Covenants 9:8–9	Gives good feelings to teach if something is true.
Alma 32:28; Doctrine and Covenants 6:14–15; 1 Corinthians 2:9–11	Enlightens the mind.
Alma 19:6	Replaces darkness with light.
Mosiah 5:2–5	Strengthens the desire to avoid evil and obey the commandments.
John 14:26	Teaches truth and brings it to remembrance.
John 14:27	Gives feelings of peace and comfort.
John 16:13	Guides to truth and shows things to come.
Moroni 10:5	Reveals truth.
Doctrine and Covenants 45:57	Guides and protects from deception.
2 Nephi 31:18; Doctrine and Covenants 20:27; John 16:14	Glorifies and bears record of God the Father and Jesus Christ.
Doctrine and Covenants 42:16; 84:85; 100:5–8; Luke 12:11–12	Guides the words of humble teachers.
John 16:8	Recognizes and corrects sin.
Moroni 10:8–17; Doctrine and Covenants 46:8–26; 1 Corinthians 12	Gives gifts of the Spirit.
Alma 10:17; 12:3; 18:16, 20, 32, 35; Doctrine and Covenants 63:41	Helps to perceive or discern the thoughts of others.
Doctrine and Covenants 46:30; 50:29–30	Tells what to pray for.
2 Nephi 32:1–5; Doctrine and Covenants 28:15	Tells what to do.
1 Nephi 10:22; Alma 18:35	Helps the righteous speak with power and authority.
Doctrine and Covenants 21:9; 100:8; John 15:26	Testifies of the truth.
2 Nephi 31:17; Alma 13:12; 3 Nephi 27:20	Sanctifies and brings remission of sins.
1 Nephi 2:16–17; 2 Nephi 33:1; Alma 24:8	Carries truth to the heart of the listener.
1 Nephi 1:1–3; Exodus 31:3–5	Enhances skills and abilities.
1 Nephi 7:15; 2 Nephi 28:1; 32:7; Alma 14:11; Mormon 3:16; Ether 12:2	Constrains (impels forward) or restrains (holds back).
Doctrine and Covenants 50:13–22	Edifies both teacher and students.
Doctrine and Covenants 88:3; John 14:26	Gives comfort.

Further Reading

Steven J. Danderson, The Cost Effectiveness of Praying for a Testimony

Idem, Hissy Fits and Bouncing Checks: Paying the Costs of Gospel Knowledge

Idem, Final Comments

On the Protestant belief in the internal witness of the Holy Spirit (to preempt Protestants who will dismiss this concept), see

Protestant Fideism: A Primer