please see for yourself. —

see this for yourself! —

as said in -kalau krutha yuganthasya-, see for yourself that this occurred by the presence of bhāgavathas who engage in virtuous activities from the times of krutha yuga; —

know that this is the glorious means which was explained previously. —

try to keep —

keep (this) in your mind. —

and for the uthsavams for emperumān, please take soil (thirumul̤aith thirunāl̤ – sprouting ritual which is done before the uthsavam) and get immersed in the uthsavam —