We pray to the King of Kings daily, pronouncing the same liturgy three times a day. That is, every day we pray the exact same Amida — morning, noon and night. Therefore, to us, our prayers become old or even boring. What does the King of the World do about this? Each day, He puts us into different situations requiring His help. Then, G-d sends us subtle hints and messages throughout the day that He is with us. Usually, He does this in the extraneous thoughts that come to us. Of course, we must know how to interpret these thoughts. When we believe that G-d is with us, we can arouse in our heart a feeling of deep love and attachment to G-d.
Adapted from Heart of Prayer: Baal Shem Tov, by Tzvi Meir Cohn