The Bible contains very little instruction on how to pray, but it contains abundant examples. Five to ten percent of the Biblical text is prayer. Some is impromptu prayer for blessing, healing, rescue, etc., some is formal and intended to be recited at public events or ceremonies, while much of it is poetic worship intended to be memorized and sung during corporate worship or even private prayer times.

We can learn a lot about how God wants us to approach him by reading the heartfelt prayers of David, the sons of Korah, and others in the Psalms. We can also learn about the kinds of prayers that inspire God to action by what he told his prophets and by how he responded to his people.

And now, behold, the cry of the people of Israel has come to me, and I have also seen the oppression with which the Egyptians oppress them.
Exodus 3:9 ESV

Most of the explicit instruction on how to pray comes from Yeshua himself in the Gospels. We've all heard of the Lord's Prayer and probably recited it many times, but he also talked about where and when to pray.

Prayer, singing praises, and Bible reading are the most direct means by which we can connect with God today (Doing good deeds for others is another important way, but is less direct.), but you might not be aware that there is an entire book of the Bible dedicated to instruction on how to approach God. Which book? Brace yourself!

The book of Leviticus is all about how to worship God and live in his presence.

All that stuff about animal sacrifices and blood and fire might seem outdated since we haven't done that in many centuries, but remember what Paul told Timothy about how all Scripture is good for learning about God. A close study of the details and purposes of the various sacrifices and how a person must live if he expects to approach God at the Temple can tell us a lot about God's character and what he still expects of us today.

And not just Leviticus, of course! All of the commentary and prophecy about the sacrificial system throughout the prophets and the New Testament. None of those passages would make any sense if we didn't already know Leviticus.