For a person who cherishes compassion and love, the practice of tolerance is essential, and for that, and enemy is indispinsable. So we should be grateful to our enemies, for it is they who can best help us to develop a tranquil mind.
From the Sun I learned this: when he goes down, overrich; he pours gold into the sea out of inexhaustible riches, so that even the poorest fisherman still rows with golden oars. For this I once saw and I did not tire of my tears as I watched it.
Just as the grammarian makes one study grammar,
A Buddha teaches according to the tolerance of his students;
Some he urges to refrain from sins, others to do good,
Some to rely on dualism, other on non-dualism;
And to some he teaches the profound,
The terrifying, the practice of enlightenment,
Whose essence is emptiness that is compassion
The wounded surgeon plies the steel
That questions the distempered part;
Beneath the bleeding hands we feel
The sharp compassion of the healer's art
Resolving the enigma of the fever chart.
For a practitioner of love and compassion, an enemy is one of the most important teachers. Without an enemy you cannot practice tolerance, and without tolerance you cannot build a sound basis of compassion.
Even more important than the warmth and affection we receive, is the warmth and affection we give. It is by giving warmth and affection, by having a genuine sense of concern for others, in other words through compassion, that we gain the conditions for genuine happiness. More important than being loved, therefore, is to love.