Tristesse - my beloved husband is now at the end of his life

My beloved husband is now at end of life treatment in local hospice from GBM Stage 4, diagnosed Nov.2018. All treatment failed. There is no cure as yet for this. I treasure my daily visits with him. He is bed bound. Has lost his sight. (He is an artist). I massage his hands. Play healing Buddhist mantras. Read to him. He understands all I say. He is calm and no pain. He is given meds for headaches. He is my Warrior King. I am grieving daily but joyful in his presence. It is heartbreaking. Lets all support each other and pray for a cure. Tristesse