The so-called past, present and future are actually just a phenomenon and controversial in physics. Everything is illusory. In fact, it will always be void, without dividing yesterday, today and tomorrow. The hearts of all beings, such as time, are constantly changing and will never be grasped. When we say the future, it becomes the present, and when we say the present, it becomes the past. This phenomenon is unattainable, all feelings and perceptions are the same. But all beings don't understand this truth, and it's futile to be trapped in three hearts and desperately want to catch something.
The old monk wants to tell her to do whatever she wants, live in the present and don't think about it, because when you think about it, the present has become the past and the future will become the present.
Personally, I think the old monk may think that she thinks too much and hates iron to produce. The world, especially women, can easily think too much and miss opportunities at this painful stage. However, thinking is not so simple and may not be a good choice.
I hope my answer can help you a little. . .