This morning I woke up from a dream where I was helping a woman - a complete stranger to me in the dream - try to stay alive by replacing long glass tubes on the machine attached to her via long tubes. Each long glass tube had a double digit number on it. The one glass tube - labeled 56 - was missing from her machine and I couldn't find it before she passed away.

I have no idea what the number 56 in my dream means or who the woman in the dream was, who I was trying to save but couldn't.

Any ideas?