To some of the above posters, why must you make fun of people receiving Brochas? A talmid chochom has awesome powers that we cannot fathom. Throughout our Mesora people have gone with their various issues to their Rebbeim and Rabbonim for help and Eitzas.Please be very careful when you dismiss the power of a sincere Bracha.
Remember you get a bracha from your parents before Yom Kippur for a reason. It is because they wish you a sincere year of Chaim as you are being judged and their wishes of Bracha help in shamayim. A true Tzaddik really cares almost like a parent about all those who come to him and their wishes for Mazel and Bracha have a tremendous Koach in Shamayim to help with the Din against you, or their tefillos might help ease a nisayon you are facing. Obviously this is also the reason for saying Tehillim and all Tefillas. Hashem listens to our heartfelt wishes. We must assume that a Tzaddik might feel a deeper Kesher to shamayim then the average person and see the true tzelem Elokim in the people that he sees as well.
Now as to why you might ask on Purim is there an inyan for getting this Rov’s Bracha? We definetly have in our Mesora as well, that Tzadikim feel that we have certain kochos of Bracha on certain days and times throughout the year.(Adar is a Mazeldike month, or another example when a baby is crying by a Bris people gathered there are suppossed to daven for their needs as it is a zman of tefilla acceptance by Hashem).
May the young lady in question, find her bashert bito bizmano bikarov.Only Simchas