My very dear one,
I checked regarding any practices that may help him at this time. According to my observation, these are the practices that came out for your mother to do for him every day—while he is ill and if she would like to.

• Recite the eight goddesses prayer (Verses for the Eight Noble Auspicious Ones), five or six times a day.
• Also recite the White Umbrella deity prayer.
• The Sutra for Entering the City of Vaishali came out best for your mother to recite. She can do this every day or as she wants to.

I wanted to let you know that as soon as I heard about his illness, I recited the Vaishali Sutra five times, dedicated for him.

I just wanted to pass this on, if it’s helpful.

With much love and prayers...