“When there’s fire in the heart, there’s smoke in the head.”
The fewer impurities in the fuel, the ‘cleaner’ the fire burns and the less smoke rises from the flame. As you evolve, you purify and the heart fire burns cleaner so you think more maturely… i.e. less smoke in the head.
You do well to reflect upon how you think and behave when something triggers a fire in your heart. You do well to manage that wisely as you continue to evolve. At first, the management may require effort, keeping the fire in check with patience, humility, reflection, and self-honest exploration. As you work with it, and as you evolve, the process gets better and also easier. Working with this responsibly is called the path to wisdom. With wisdom comes success.