Chardi Kala this term is an important expression used in Sikhism for a mind frame that a Sikh has to accept and practise. It loosely means a “positive, buoyant and optimistic” attitude to life and the future. Always be – in "high spirits", "ever progressive", "always cheerful", etc are some other terms used to describe this phrase.
Sikhism dictates that Sikhs believes in the Will of God and that God is without enemies and is always merciful. Hence acceptance of his Will is in the interest of and for the benefit of His Creation, even if at times one suffers severe hardship.
This attitude of "Chardi Kala" is to allow one to sail through the ups and downs of life with as little harm as possible to the individual.
To join and help others in their hour of need is part of this “Chardi Kala” spirit.