Dreams about collecting items, like tissue paper, often symbolize a desire to gather resources or experiences that you find valuable. The act of picking only the nice ones may indicate that you are selective in your choices in waking life, focusing on what brings you joy or satisfaction.
Finding yourself in a big and nice bathroom can represent a need for cleansing or renewal. Bathrooms in dreams often relate to personal reflection, emotional release, or the desire to wash away negativity. The spaciousness of the bathroom might suggest that you are seeking more room or freedom in your life, perhaps indicating a need for self-care and relaxation.
Overall, this dream could reflect a journey of self-discovery and the importance of choosing what feels right for you while also addressing your emotional well-being. Consider what aspects of your life you feel the need to cleanse or improve and how you can create a more positive environment for yourself.