Think of the gate in larger terms as an opening in a boundary or secured area where one is not normally allowed access.
Is the gate locked or unlocked? Do you have to open it or is it opened for you? Depending on your answers, these questions may reveal some level of tension concerning an opportunity that may exist for you.What is inside the gate: a building, a sacred or taboo place, or a place of tranquillity and safety? You may see yourself going to such a place alone or with a helper for some kind of ritual experience.
If you go through the gate with somebody, it may herald that a relationship in your life is moving on to a different level (for good or bad).
Are you at a loss for opportunities, or do you feel prevented from making progress towards a particular goal? The gate may reflect potential progress, or the hope thereof, depending upon where it leads in your dream.