It occured to me instantly.
I talked with someone, then i knew, gradually, that i have to go to Realm of Death to help them, to cleanse them from taint.
I walked downwards through 7 gates, leaving Loving Eyes Mantras for hungry ghosts to make them allies and help. I left wards and called Mandalas for help to not make any mistake.
It was slow silent walk downwards, world started to be little more deathlike each step.
At 7th gate i stopped found the clue, and cleansed taint.
Silent walk up was easy, i called Death Guard to close gates behind, regenerating wards and feeding hungry ghosts with Loving Eyes Mantras. Then i called Mandalas to share accomplishment, spoils, experience, to secure what was gained, to not make any mistake.
It's over and not.