The subconscious mind is responsible for most of our body functions like digesting, breathing, and controlling all the parts of our body. We do not need to focus on these tasks, they are done by the subconscious automatically.
Apart from the body functions, the subconscious mind is also responsible for learning new habits and making them a part of the subconscious.
With the help of the conscious mind, the subconscious mind learns new things like walking, speaking, a new language, reading, writing, swimming, driving, etc. Once these habits are part of the subconscious we do not need to focus on them, they are done on autopilot by our subconscious.
Since our childhood, we have been filling our minds with many habits and thinking patterns. So if we have got a bad environment in our childhood, we would have many wrong and negative patterns in our subconscious. These patterns are now running on autopilot mode and creating our life.
To change our life we need to change these old patterns and fill in the new information. Changing subconscious patterns is not that much easy but with firm commitment and some techniques, we can change them.
Our subconscious mind is subjective. It does not think or analyze independently, it merely obeys the commands it receives from the conscious mind.
The job of our subconscious mind is to store and retrieve data. It also makes sure that you respond according to your patterns.
If you try to do something new, your mind will try to stop you because you are going against old patterns. Your subconscious wants you to go according to the stored patterns because it feels these patterns are important for your survival.