Everything in the universe is made of energy. Different energies vibrating at different frequencies. That also includes you. Your thoughts, feelings, and actions are transmitting a particular vibration out to the universe, and those vibrations shape your life.
To raise your vibration means taking actions to vibrate at a higher frequency. The higher you vibrate, the better you will feel, psychically, mentally, and emotionally.
Here are several ways you can raise your vibration