Have faith that you will attain the goal of God-realization. This faith comes from the fact that He (God) is the savior of the destitute. One of the symptoms of devotion is the firm faith, "Yes! I will reach there."

Listen to this audio podcast from Swami Mukundananda to find more on the importance of faith in devotion. He also share an interesting story of Shree Chaitanya Mahaprabhu and his disciple.