Psychology as a field contains both beneficial knowledge, such as understanding trauma, mental patterns, and human behaviour, and harmful elements rooted in secular philosophies, kufri theories, and methods that contradict tawheed. Therefore, if a Muslim studies it with firm aqidah, rejects un-Islamic concepts, and intends to benefit people within the limits of the Qur'an and authentic Sunnah, then I see no harm in studying psychology, wallahu aalam.