What should I do about my bad thoughts that don’t stop even after entrusting myself to Amida Buddha?
Don’t busy yourself with them as Amida doesn’t take them into consideration. Your salvation has nothing to do with them. This is why Master Rennyo said that for the person of shinjin our negative karma is as if non-existent, in the sense that it will not become an obstacle to our attainment of Buddhahood in the Pure Land. This is also the meaning of “we attain Buddhahood without destroying blind passions”.
Here is a wonderful poem by Senmyo Wajo:
“When you are alone and hurt, recite Namo Amida Butsu.
When you feel the loneliest man in the world and you are
depressed, again recite Namo Amida Butsu.
Namo Amida Butsu is for this ignorant person full of blind passions.
When things are as they should, not good or bad, Namo Amida Butsu.
Namo Amida Butsu is not recited for other people’s ears,
but it’s a Call between parent and child.
I hear Namo Amida Butsu with my ears,
Namo Amida Butsu I answer with my voice and my heart,
Namo Amida Butsu, recite even for ten times and sleep in peace!
If you suddenly die, whenever and wherever you are,
you are home in the Pure Land of Enlightenment[1].”
[1]The meaning is that you will enter the Pure Land no matter where you are when you die, so any place of death is a door to the Pure Land.