How much must one experience to understand this passage

The Vajra eyes blaze with fury, hiding the deepest compassion;
The Bodhisattva lowers their gaze, revealing the truest clarity.
With thunderous means, only then can the Bodhisattva's heart be shown;
Gentle kindness requires a cold eye to observe the mind.
The Vajra eyes blaze with fury, angered by sentient beings' stubborn ignorance;
The Bodhisattva lowers their gaze, seeing the illusory emptiness of all things.
The fiercer the temper, the softer the heart;
The steadier the emotions, the harder the inner self.
In youth, innocence, unaware of human complexity, often sharp and aggressive, is a wrathful Vajra;
After experiencing the world and seeing through human coldness, gradually restraining the sharpness, becoming a low-gazing Bodhisattva.
In the past, I had a bad temper but a soft heart;
Now, I am calm but have a hardened heart.
If a person can remain unperturbed by all worldly waves,
Their heart is the hardest armor in the world.
True compassion is ruthlessness that understands giving and taking;
Save the sheep, and the wolves will starve.
Heaven and earth are unkind, treating all things as straw dogs,
All suffering, only self-liberation.