How can one become proper recipient of Radharani mercy?

How can one become proper recipient of Radharani or Hladini shakti mercy?

What is Rupa Goswami saying? Eligibility of candidate for devotional service is the answer to the question, the question is answered by sincerity, that you really want, and Krishna will test our sincerity, are you sure you really want? I am paraphrasing Prabhupad’s teaching, are you sure you want Krishna? what if there is some trouble? you really want Krishna or relief from your trouble and you say no Krishna I really want you let the trouble come, I just want you because you will carry me beyond these troubles, oh they are really sincere, what if there is little sense gratification? a little sense gratification, are you sure you want me? no I don’t want that sense gratification and I want you, oh they are very sincere, then i will give myself to them because they really want me that’s the qualification for the sincerity.