Dhamma of trial and error (Rāmavāna)

A calm, peaceful, or serene mind for the ease of wisdom

Like calm, peaceful, or serene pool water for easy perception of flora and fauna

For the distinction of flora and fauna of dangerous or poisonous nature

So the art of observation and actions accordingly

Whether an arrow with effort, or simply trial and error

Whether an arrow with mindfulness, or simply trial and error

Whether an arrow with concentration, or simply trial and error

A work of peace of mind and vice versa

Anger like grasp of a hot rod, devoid of any peace of mind

A completely peaceful mind in 8th Jhāna, like fully perfect archer

As the decline of peace, rise of trial and error