Allah Ta’ala has created in us emotions/feelings/sentiments. From all these sentiments, love is the most dynamic.
There was a deep unparalleled love in the hearts of the Sahabah (radiyallahu ‘anhum) for Allah and Rasulullah (sallallahu ‘alayhi wasallam). This enabled them to practice the commands of Allah and Rasulullah (sallallahu ‘alayhi wasallam) without hesitation.
Here is a talk by My Beloved Father; Moulana Haroon Abasoomar saheb (rahimahullah) on the topic of loving Rasulullah (sallallahu ‘alayhi wasallam).
May Allah Ta’ala bless us all with this bounty.