It seems you are looking for the content of Al-Maqasid by Imam Nawawi (often referring to his famous work Maqasid al-Tawhid or more correctly Maqasid al-‘Ibadat ? Actually, the well-known Al-Maqasid is often by ? Let me clarify.)
, first published in 1992. Keller’s edition enhances the original imam nawawi al maqasid pdf
The work is structured to guide a believer from the fundamentals of belief through the technicalities of worship and finally into the refinement of the soul. It seems you are looking for the content