"If we were to respond to difficulties with a positive or peaceful mind, they would not be problems for us: indeed we may even come to regard them as challenges or opportunities for growth and development" "Transform your life" by Geshe Kelsang Gyatso

There are three reasons why we need to study and practice the teachings of Buddha: to develop our wisdom, to cultivate a good heart, and to mantain a peceful state of mind.
If we do not strive to develop our wisdom, we will always remain ignorant of ultimate truth - the true nature of reality.
Although we wish for happiness, our ignorance leads us to engage in non-virtuous actions, which are the main cause of our suffering.
If we do not cultivate a good heart, our selfish motivation destroys harmony and good relationship with others.
We have no peace, and no chance to gain pure happiness.
Without inner peace, outer peace is impossible.
If we do not maintain a peaceful state of mind, we are not happy even if we have ideal conditions.
On the other hand, when our mind is peaceful, we are happy, even if our external conditions are unpleasant.
Therefore, the development of these qualities is of utmost importance for our daily happiness.

"The Bodhisattva Vow"
Geshe Kelsang Gyatso