Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
When we begin reciting a certain dhikr we taste the sweetness of the dhikr, but this gradually disappears. How do we retain this?
The soul naturally reacts to new things and gains new energy from them. So you should seek a renewal in your presence every time you read your adhkar and increase your contemplation on them so that you receive new gifts from Allah.