Dreaming of praising Allah signifies the potential for grace and rewards in your life. It indicates that you will find the right path for your spiritual journey. This dream points to your spiritual growth and may herald positive changes in your life. If you experience this dream, it calls for you to pay deep attention to your spiritual awareness and beliefs.
From Imam Muhammad Ibn Seerin's Dictionary of Dreams According to Islamic Inner Traditions â entry "Praises" (page 338).
Praising God Almighty and thanking Him in a dream means receiving benefits and a great reward. It also means finding guidance for one's religious life. Praising God Almighty in a dream is also interpreted as begetting one or two sons who will grow to become religious scholars. As for a poor man, praising God Almighty in a dream means wealth. If one sees people praising him in a dream, it means that he will live up to it and do good. Ifhe sees them showering him with money in the dream, it means that they are speaking ill of him.
Note: Islamic dream interpretation depends on the dreamer's circumstances and state. This is a general guide drawn directly from the source book.