Your dream of going down a colorful slide in a jungle-like room suggests a desire for fun and adventure in your life. Slides often represent a carefree attitude and the enjoyment of life's ups and downs. The vibrant colors may symbolize excitement, creativity, and the various opportunities available to you.

Seeing someone you know but not being close with could indicate a fleeting connection or an invitation to engage with others in your life. His brief greeting and quick departure might suggest that you are feeling the need to connect with others, but perhaps you also feel a sense of distance or lack of deeper interaction in your relationships.

Overall, this dream might be encouraging you to embrace new experiences and connections, even if they are brief or not deeply rooted. It could be a reminder to explore your social surroundings and enjoy the playful aspects of life. Consider what areas of your life could benefit from more spontaneity and joy!