If you want to make your career more bright and prosperous then you have to start helping others. Helping others is the fastest way to grow your career. I had experiences in my life that helping others attitude people have rapidly developed their career. Helping others attitude people easily gets their targets and fulfill their dreams.
Helping others also has positive impact on our health as well. According to recent research the habit of helping others can stimulate neural change. "Moreover, there is now neural evidence from fMRI studies suggesting a link between generosity and happiness in the brain." Source
Helping others energies our spiritual power, reduces human depressing, creates feeling of happiness, provides satisfaction and gives purpose of life.