The antonyms for the phrase "lay one's door" would be related to the opposite of closing or shutting a door. Some possible antonyms could include leaving a door open, propping a door ajar, or even completely removing a door from its hinges. In terms of the figurative meaning of "laying one's door," which refers to putting up barriers or closing oneself off to others, potential antonyms could include welcoming others in, being open-minded and receptive to different perspectives, or actively seeking out opportunities for connection and collaboration. Ultimately, the antonyms for "laying one's door" would be those actions and attitudes that promote inclusivity, accessibility, and warmth towards others.