الحمد لله رب العالمين والصلاة والسلام على رسول الله أشرف المرسلين، فإن أصدق الحديث كتاب الله، وخير الهدي هدي محمد صلى الله عليه وسلم، وشرّ الأمور محدثاتها، وكلّ محدثة بدعة، وكل بدعة ضلالة، وكلّ ضلالة في النار. أما بعد فإن العقيد الإسلامية الصحيحة عقيدة لها تأثير بليغ على النفوس والسلوك، فهي متعلقة بما وقر في القلب من إيمان، وصدقه اللسان وعملت به الجوارح، فالإيمان يزكي ويصلح السريرة ويقوم السيرة، ويُظهر في سلوك العبد الذاتي تأثير العقيدة، فاسم الله الرقيب والحيي، يأثر في سلوك الرقابة لله والحياء منه، واسمه الكريم يأثر في سلوك العبد في كرمه وعطائه، وهكذا فهو يؤمن بما أخبر الله عن نفسه وأخبر عنه عبده ورسوله محمد صلى الله عليه وسلم، ويتقرب به لله ويعمل به فيتأثر به سلوكه الذاتي في كل مناحي حياته، ويصنع منه إنسانا قويم السلوك نافع لأمته داعيا بسلوكه لله ومؤثرا بواقعه ومحيطه الذي يعيش فيه. Praise be to God, Lord of the Worlds, and prayers and peace be upon the Messenger of God, the most honorable of messengers, for the most truthful speech is the Book of God, and the best guidance is the guidance of Muhammad, may God bless him and grant him peace, and the worst of matters are newly invented matters, and every newly invented matter is an innovation, and every innovation is a misguidance, and every misguidance is in the Fire. . As for what follows, the correct Islamic belief is a belief that has a profound effect on the souls and behavior. It is related to the faith that is established in the heart, the truth of the tongue and the action of the limbs. Faith purifies, corrects the soul, establishes the life, and manifests in the self-behavior of the individual the effect of the belief. His honorable name affects the behavior of the servant in his generosity and giving, and thus he believes in what God has told about himself and his servant and Messenger Muhammad, may God's prayers and peace be upon him, told about, and draws close to God and works with it, so his personal behavior is affected by it in all aspects of his life, and he makes From him is a person of upright behavior, beneficial to his nation, calling for his behavior to God and affecting his reality and his surroundings in which he lives.