Literal:
* The ocean: Vast, limitless, and welcoming to all.
* A wide-open field: Unrestricted space, offering freedom and possibilities.
* A door left ajar: Symbolising welcome, accessibility, and a lack of barriers.
Figurative:
* A person's mind: Someone willing to listen to new ideas, embrace different perspectives, and change their own opinions.
* A discussion: A conversation where everyone feels comfortable expressing their thoughts freely, without judgment.
* A city: A place that is welcoming to people from all walks of life, with diverse cultures and opportunities.
More abstract:
* The universe: Boundless, full of mysteries, and constantly expanding.
* The future: Full of potential, unknown possibilities, and a chance for change.
* Love: An emotion that can be shared freely and generously, with no limits.
The best answer depends on what you're looking for in "very open." It's up to you to decide what resonates most with you!