Pray regularly with sincerity & devotion .

This hadith speaks of the power of prayer and its importance in our lives. It tells us that when we pray, we should do so with sincerity and devotion, as Allah will reward us for it. The Prophet's response to the man's prayer shows us how much Allah values our prayers and how He rewards those who pray sincerely. Furthermore, this hadith also teaches us that even if we are alone in our prayers, Allah will still hear them and reward us accordingly. Additionally, this hadith also speaks of the angels who rush to take up our words when we pray sincerely; thus showing us that even if no one else is around to witness or appreciate our prayers, there are still heavenly beings taking note of them.

Overall, this hadith serves as an encouragement for believers to continue praying regularly with sincerity and devotion as they can be sure that their efforts will not go unnoticed by Allah or His angels.