Caution, the doors are closing

We always think that life is endless and we will have time for everything. Including to tell our loved ones how dear they are to us and to repay debts — not monetary, but moral.
Evgeny Sviridov lived as if real... life was waiting for him ahead, and right now — it's a warm-up, training before an important start. An unsuccessful artist, he was convinced that emigration was the way out. That in the West his paintings would certainly be appreciated. But it turned out that this was not the case.
And here he is, after a long separation, arrived in Moscow, where his daughter and ex-wife live. He is determined to make their lives better. But it turned out that any doors eventually close.
Is it necessary to try to jump into a departing train?