(now) in my heart, where ī am your servitor —

 having pure heart which is apt for bhagavath vishayam —

those who do not have rationale and who have narrow minds —

residing permanently in the minds of those blemishless persons (who have left aside other benefits) —

entering my heart —

in my heart (which craved to attain him) —

one who has deep love for me and who never leaves my mind —

in the mind without any doubt —

srī rāma pirān who is sweet to our hearts —

is the mind of emperumānār; —

keeping in the mind —

in my heart; ī who am having the sin of being pained after union [due to the separation] —

keep in your heart —

he is permanently residing in my mind. —

(their) apt hearts —

 with my heart which is having strong faith —

 like mother-s heart —

 in the heart —

 in mind —

 having mind —