The speaker is by themselves at work as Christmas approaches, and the mood is quiet, tired, and a little bitter. The first line is the sharpest: "I bought many things worth my hate." It's an odd phrase. The speaker seems to have spent money on things, perhaps gifts or seasonal stuff, only to find they deserve contempt rather than affection. Buying becomes a sour, joyless act, and the empty office makes the feeling lonelier.
The last two lines shift the tone. "The year is again a door" suggests the calendar is turning, and the word "again" hints that this has happened many times before. A door can mean a fresh start, but here it doesn't feel hopeful. It feels more like something the speaker must pass through whether or not they want to. The title, "Sacred time," pushes against the dull scene, setting a holy idea beside commercial routine. The poem leaves us unsure whether the speaker finds any real meaning in the season, or only the pressure of it.