John Calvin, a 16th century pastor/theologian, wrote on the subject of prayer in his Institutes for the Christian Religion. In Book 3, ch. 20, there can be four principles to guide our prayer life with God.

1.) a heartfelt sense of reverence
2.) a heartfelt sense of need and repentance.
3.) a heartfelt sense of humility and trust in God.
4.) a heartfelt sense of confident hope.

I have taken these four principles and have added excerpts from his writing for two of the principles, as well as two passages of Scripture from the Psalms to guide one in prayer. The idea is to help one to move into a posture, or frame of mind, to engage their relationship with God, as well as to then use the Psalms as a prayer guide to prayer.

Throughout church history the Psalms have long been used as a worship hymnal and prayer guide. Perhaps they can aid you as you enter into a contemplative prayer practice with Abba Father, Jesus our Savior, and the Holy Spirit our Comforter.

1.) a heartfelt sense of reverence

Let the first rule of right prayer then be, to have our heart and mind framed as becomes those who are entering into converse with God. This we shall accomplish in regard to the mind, if, laying aside carnal thoughts and cares which might interfere with the direct and pure contemplation of God, it not only be wholly intent on prayer, but also, as far as possible, be borne and raised above itself. I do not here insist on a mind so disengaged as to feel none of the gnawings of anxiety; on the contrary, it is by much anxiety that the fervour of prayer is inflamed. Thus we see that the holy servants of God betray great anguish, not to say solicitude, when they cause the voice of complaint to ascend to the Lord from the deep abyss and the jaws of death. What I say is, that all foreign and extraneous cares must be dispelled by which the mind might be driven to and fro in vague suspense, be drawn down from heaven, and kept grovelling on the earth. When I say it must be raised above itself, I mean that it must not bring into the presence of God any of those things which our blind and stupid reason is wont to devise, nor keep itself confined within the little measure of its own vanity, but rise to a purity worthy of God.

2.) a heartfelt sense of need and repentance.

Have mercy on me, O God, according to your steadfast love; according to your abundant mercy blot out my transgressions. Wash me thoroughly from my iniquity, and cleanse me from my sin! For I know my transgressions, and my sin is ever before me. Against you, you only, have I sinned and done what is evil in your sight, so that you may be justified in your words and blameless in your judgment. Behold, I was brought forth in iniquity, and in sin did my mother conceive me. Behold, you delight in truth in the inward being, and you teach me wisdom in the secret heart. Purge me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow. Let me hear joy and gladness; let the bones that you have broken rejoice. Hide your face from my sins, and blot out all my iniquities. Create in me a clean heart, O God, and renew a right spirit within me. Cast me not away from your presence, and take not your Holy Spirit from me. Restore to me the joy of your salvation, and uphold me with a willing spirit. (Psalm 51:1-12 ESV)

3.) a heartfelt sense of humility and trust in God.

The third rule to be added is: that he who comes into the presence of God to pray must divest himself of all vainglorious thoughts, lay aside all idea of worth; in short, discard all self-confidence, humbly giving God the whole glory, lest by arrogating anything, however little, to himself, vain pride cause him to turn away his face. Of this submission, which casts down all haughtiness, we have numerous examples in the servants of God. The holier they are, the more humbly they prostrate themselves when they come into the presence of the Lord.

4.) a heartfelt sense of confident hope.

Bless the LORD, O my soul, and all that is within me, bless his holy name! Bless the LORD, O my soul, and forget not all his benefits, who forgives all your iniquity, who heals all your diseases, who redeems your life from the pit, who crowns you with steadfast love and mercy, who satisfies you with good so that your youth is renewed like the eagle’s. The LORD works righteousness and justice for all who are oppressed. He made known his ways to Moses, his acts to the people of Israel. The LORD is merciful and gracious, slow to anger and abounding in steadfast love. He will not always chide, nor will he keep his anger forever. He does not deal with us according to our sins, nor repay us according to our iniquities. For as high as the heavens are above the earth, so great is his steadfast love toward those who fear him; as far as the east is from the west, so far does he remove our transgressions from us. As a father shows compassion to his children, so the LORD shows compassion to those who fear him. (Psalm 103:1-11 ESV)