If your dream is about number 1, it means the state of being superior to all others around in status. You are scouting first all unknown paths. Something grand is coming into your life.
If currently you have important goal in life, so you should reach success with this new project. It will bring more happiness than you can imagine.
Additionally, dreaming about one of something represents the process of operating the important capability which is common in the symbolism of this particular thing.
One cat means solitude and freedom. One lion means kingship and authority. One snake means sexuality and insight. One monkey represents financial gains. One hair means the connection to the Spiritual Realm. One coin means important business decisions.
Alternatively, number one may indicate a person about which you care most.