Prayer is not foolish.

Prayer is a very needful in a Christians life.  Jesus' Disciples asked him to teach them how to pray (see Mt. 6 and Luke 12).  Even Jesus himself (the Creator of all the universe) prayed (see Mark 1:35; 6:46,47; Lk. 5:15,16; 9:18; 22:41,42; John 17).

Luke 6:12 - "And it came to pass in those days, that he went out into a mountain to pray, and continued all night in prayer to God."  In this verse, Jesus prayed all night long.  If Jesus prayed all night long, then what ought we to do?  We are to follow his example (see 1 Peter 2:21; Ep. 5:1; 1 Jn. 2:6).  Also when Jesus prayed in the Garden of Gaethsemane, his sweet became as blood (see Luke 22:42-44).  He also told the discisple, "Pray that ye enter not inot tempatation" (Luke 22:40b).

1 Thessalonians 5:17 - "Pray without ceasing."

Check out these verses:

1 Chronicles 16:11 - "Seek the LORD and his strength, seek his face continually."

Matthew 26:41 - "Watch and pray, that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak."

Luke 18:1 - "And he spake a parable unto them to this end, that men ought always to pray, and not to faint;"

Luke 21:36 - "Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man."

Ephesians 6:18 - "Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;"

Philippians 4:6 - "Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God."

Colossians 4:2 - "Continue in prayer, and watch in the same with thanksgiving;"

1 Timothy 2:8 - "I will therefore that men pray every where, lifting up holy hands, without wrath and doubting."

Psalm 65:2 - "O thou that hearest prayer, unto thee shall all flesh come."

Isaiah 56:7 - "Even them will I bring to my holy mountain, and make them joyful in my house of prayer: their burnt offerings and their sacrifices shall be accepted upon mine altar; for mine house shall be called an house of prayer for all people."

Psalm 34:17 - "The righteous cry, and the LORD heareth, and delivereth them out of all their troubles."

Micah 7:7 - "Therefore I will look unto the LORD; I will wait for the God of my salvation: my God will hear me."

We need to pray, it keeps us connected in our relationship with Jesus Christ.  It is the way to communiate to Him, and to God.  Just as communication is vital to marriage, so is pray in our relationship with Jesus Christ.