Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
How can I taste the sweetness of worship?
Not tasting the sweetness of worship is mainly due to the heart not being fully focused on Allah and being preoccupied by other than Allah. It may also be due to a veil in the heart such as pride or hatred for someone. By standing at Allah’s door and attempting to purify your heart, you will no doubt taste the sweetness of worship. `Utbah al-Ghulam said: “I forced myself to perform the night vigil prayer for twenty years until I tasted its sweetness.”