Sanskrit Background
Those who have a sanskrit background, then slokas can be remembered easily. At the end, it will be helpful to remember the Lord.
Pleasure
“Sa vai pumsam paro dharmo”, Unless we get pleasure, we can’t do it
By Product of Service
Service is also kirtana. Only singing is not kirtana. Then it automatically turns into remembering. This is the by-product.
Glorifying the Lord
“Yad uttama-shloka-gunanuvarnanam”, Chemistry, Poetry etc. can be used to glorify the Lord.