First, satisfy your senses, go to the location where taint is a strong ideology to you. This is individual in choice. Once there, sit a while. Let the environment rekindle that aspect of your mind until it is strong and vibrant as an idea in you. Bring others you feel bolster the concept should you choose.
Now collect some materials. Gather some ashes from the fire of burning books, some water from the caves of torment and a sharp tool. This can be anything from a knife to a sharp stone. Mix the ashes and water in a bowl into a pulp, then walk the realm and place a small knick in every tree you can find, followed by wiping some of the pulp in to the cut. As you do this, state 'one moment defines all others that spring from it', then stab the ground near the tree with your tool and rip it back from the ground leaving the hole as it is.
Once you have done this with all trees, move on to people. Subtly knick them with the tool when they are nearby and not paying attention. Apologise and smile, while basking in the minor shock they experience and possibly angry retaliation. Do this to 12 people.
At the Necrovian gates, carve a deep line in to your shin, then walk through. State 'so I enter and walk on legs I grew', then take some dirt from the ground and rub it in to the wound.
Use this tool ever more for all tasks that would need a sharp tool, and use your scar to recall the foundation you created.
Z