This is an excerpt from the UPLIFT site:

"What does it mean to “hold space” for someone else?It means that we are willing to walk alongside another person in whatever journey they’re on without judging them, making them feel inadequate, trying to fix them, or trying to impact the outcome. When we hold space for other people, we open our hearts, offer unconditional support, and let go of judgement and control.
Sometimes we find ourselves holding space for people while they hold space for others. In our situation, for example, Ann was holding space for us while we held space for Mom. Though I know nothing about her support system, I suspect that there are others holding space for Ann as she does this challenging and meaningful work. It’s virtually impossible to be a strong space holder unless we have others who will hold space for us. Even the strongest leaders, coaches, nurses, etc., need to know that there are some people with whom they can be vulnerable and weak without fear of being judged."