On watching Holy Mass on television or via the internet
The visionary Polish nun, Sr. Maria Faustyna Kowalska, was often ill. On one occasion she was able to witness the celebration of Holy Mass from her bed in her cell in the convent.
"Friday. I was ill and could not attend Holy Mass. At seven o'clock in the morning I saw my confessor celebrating Holy Mass, during which I saw the Child Jesus. Toward the end of Mass, the vision disappeared, and I found myself back in my cell as before. Indescribable joy took hold of me because, although I could not go to Mass in our own chapel, I had assisted at it in a church which was far distant. Jesus has a remedy for everything." - Bl. Sr. M. F. Kowalska, Divine Mercy in my soul (Marians of the Immaculate Conception, Stockbridge, Massachusetts, p. 197), #447.