"This tool helps you control your impulses for immediate gratification. This may include food, drugs, sex, etc. we all have emotional habits that are gratifying in subtle ways and yet that weaken us. The most common examples are projecting our anger out on others or 'spilling' our anxieties out on them.
Pick an impulse you struggle with (sugar craving, or yelling at your spouse). Think of this impulse as traveling out to the world through a 'lower' channel that you can close off. Do this by associating the pain behind the projection (physical or emotional) with the impulse instead of pleasure or relief. Feel the impulse arise and immediately feel the pain. Feel the pain close the channel – it should feel like a door slamming shut. This will keep you from acting on your impulse. The energy is now 'inverted' (held back inside you)..."
Being able to identify a destructive impulse and transmuting it to be of service helps us move the center of focus from us to others, which ironically serves both.