What do you mean by a major life node holiday?

It means some important days, and each node represents the beginning or end of a journey.

Nodes in life are important days for me, and each node represents the beginning or end of a journey. Some nodes may be ecstatic, and some nodes may be endless despair. It is the navigation mark of life journey. It looks like a life calendar, in which all the joys and sorrows of life are integrated.