A teaching by Shechen Gyaltsap Gyurme Pema Namgyal, explained by Shechen Rabjam Rinpoche and his student.
It blow all obstacles away, at least so I thought. But I forgot the words of Dilgo Khyentse Rinpoche, warning for friends leading us away from Bodhichitta by ones own unstability of mind. And so mind started to chase after its tail, crying since it could not catch that nasty one. The four immeasurables turned into the four miserables.
Shechen Gyaltsap: "It has inflicted hundreds of tortures upon me.
Yet instead of resenting it,
I have put my trust in it and fallen under its power
Is there any catastrophe any delusion
worse than this?"
Shechen Gyaltsap: "Donning the armour of the four boundless ones
And rallying the armies of the six paramitas,
Today with the sharp weapons of emptiness and compassion,
I shall slay my foe!"
An example regarding the boundless ones was given as impartial compassion for those appearing as enemies- friends. Since the division of these two is only own minds' suffering (= the foe, thinking to be separate thing) and does not exist elswhere.
Then boundless love, boundless joy that all beings may be happy and have the causes for this, that their happiness may increase further and further and to apply these three in equanimity.
Shechen Gyaltsap:"The meaning, the primordial indivisibility of wisdom and skilful means, emptiness with compassion as its very essence, must be carried onto the path".