api chetsuduraachaaro bhajate maamananyabhaak |
saadhureva sa mantavyaha samyagvyavasito hi saha || 30 ||

Also, even if someone of extremely poor conduct worships me with wholehearted devotion, consider him a saint, for he has resolved very well.
api : also
chet : even if
suduraachaaraha : someone of extreme poor conduct
bhajate : worships
maam : me
ananyabhaak : wholehearted devotion
saadhuhu : saint
saha : him
mantavyaha : consider
samyak : very well
vyavasitaha : resolved
hi : for
saha : he has
Shri Krishna begins to explain the glory of bhakti or devotion with this shloka. He says that devotion is the easiest means of obtaining access to Ishvara. It is so easy that even a criminal, a sinner in the world can be considered a saint if he worships Ishvara with wholehearted devotion.
Why is bhakti so great as a means of accessing Ishvara? Bhakti has no prerequisites. It can be practiced by anyone at any stage in their life. There is financial, ancestral or intellectual requirement. Moreover, it is not alien to most of us. Many of us who grew up in the Indian tradition are already used to performing worship, even if it is for a minute in front of the deity in our living room. All we have to do is to expand this notion of worship to include everything we do.
Here, Shri Krishna says that if there is an individual that has extremely bad conduct, if he is the worst among sinners, if he starts worshipping Ishvara with single pointed devotion, this resolve is enough to uplift him to the status of a saint. The word “ananyabhaak” is very important in this shloka. It means that this person has shifted his attention from all worldly pursuits including name, fame, money and power. His only goal is Ishvara.
So this person may not look like a saint outwardly, but he should be considered a saint, just like one who has checked into a flight is considered to have already reached the destination, even if it will take some more time. Such a saint has begun to shift his identification or sense of “I-ness” from his body to the infinite Ishvara. But his resolve or his commitment to this path is most important. He should be “samyak vyavasitaha” which means well determined, and be able to absolutely understand as to what is the right thing for him.
If this resolve is so important, how does one go about it? How long does it take? We shall see this next.