Oh Varun, I am so sorry to hear about the passing of your Dad. This must be so difficult for you. Please try to stay strong and keep moving forward in your recovery. Meditation is helpful and will give you some peace.
So sorry to hear of your dad's passing on to a better place as Bina said meditation and inner reflection is a huge part of the recovery cycle as to the physical .....go for walks and when you get back ...go for another walk but care should always be taken in high heat and humidity