A home cooked meal, a kind word or smile won't change anything about a star across the galaxy, but what does anything at all about a star across the galaxy matt

A home cooked meal, a kind word or smile won't change anything about a star across the galaxy, but what does anything at all about a star across the galaxy matter if it doesn't in some way help to make home cooked meals, dispense kind words, or cause smiles? Matter doesn't matter, consciousness does.