In the Bible there is a sentence Jesus drove the money changers out of the temple. According to Yogananda money changers are those who bargain with god. I will do this God if you give me this. Etc
This is why it fails
Our prayer should be pure. Surrender perfect. Mother said it best ! ( aurobindo ).
To walk on the path you must have a dauntless intrepidity, you must never turn back upon yourself with this mean, petty, weak, ugly movement that fear is.
An indomitable courage, a perfect sincerity, a total self-giving to the extent that you do not calculate or bargain, you do not give with the idea of receiving, you do not offer yourself with the intention of being protected, you do not have a faith that needs proofs, — this is indispensable for advancing on the path, — this alone can shelter you against all dangers.
The Mother, Words of the Mother III, CWM volume 15, page190.
Very difficult to do. Surrender takes years and years of practice and self analysis and self criticism. And mediation
Bhavin