Gunas
“यद् भावनं तद् भवति इति” ।।
"You are what you think"
In other words your thoughts translates into your actions. In an ordinary man there is a mixture of the three gunas (Sattva, Rajas and Tamas). Tamas and Rajas pull a man downwards; Sattva lifts a man upwards. When the mind is Sattwic, there is calmness, check your Guna.