The Noble Scholar Shaykh ‘Abdur Rahmān bin Nāsir As-Si’dī رحمه الله stated:

“Know that your life is subordinate to your thoughts. If they are thoughts concerning that which brings about benefit upon you in your Dīn or Dunyā your life will be one of happiness and goodness. And if not, the matter will be otherwise.”

[Al-Hayāh As-Sa’īdah Pg.30]