Prayer is our primary means of communication with the Lord.
Prayer Catholic Infographic
 
Key components to effective prayer include:
Preparation: Prepare your mind and heart. Ask the Holy Spirit to be present.
Sincerity: Be sincere when talking to the Lord. Don’t worry about using fancy words; speak honestly from your heart.
Location: Look for a suitable and silent place to say your prayers.
Quality: The quality of your prayers is more important that the quantity and length.
Concentration: Train yourself to concentrate and try your best to ignore distractions.