Hope is one of the key virtues that alone can alone describe the Christian faith. The others are fait and love. Titus 2:13 Colossians 1:27  

Christian hope is the basis of faith. Heb11:1  

Christian hope is expectation of glory born out of our vital and legal union with Christ. Titus 2:13 1Cor15:13-15  

How to keep hope alive

1. The love God through the Holy Ghost Rom5:5 
2. Knowledge. Romans 15:4  
3. Meditation on the goodness of God. Lam2:20-21  

Benefits of having hope
1. Hope directs and keeps as align to God's plan and purposes. 
2. Hope is the foundation for the growth of our faith
3. Hope is fuel and motivation for success. Proverbs 13:12