Even a thorn that hurts a Muslim in this world will be written as a recompense and reward for the hereafter for the person - Hadith. Every pain a beliver goes through, Allah is writing for him/her tremendous rewards and blessings in hereafter, not comparable, not comprehendible. May Allah s.w.t give sister Maria a Shifa Ajila Kaamila in the sadaqah of this holy month of Ramadan and arrange for her through His unbelievable ways and miracles. If we want miracle to happen, we have to believe that "EVERYTHING is possible" with the permission of Allah, s.w.t. May Allah bless her sister's departed soul and bless the entire family going through this struggle and may Allah bring them out victorious in this struggle. Borther in Islam.