Mera Ques: Fundamental Rights vs. Directive Principles

Maine suna hai Fundamental Rights (FR) aur Directive Principles of State Policy (DPSP) dono Constitution mein hain, lekin fir bhi unka kya connection ya fark hai? Main aapko explain karna chaahta hoon.

Kya yeh dono ek dusre ke liye dependent hain? Agar nahi, to fir unka connection kyun hai? Aur DPSP ke rules ka importance kya hai? Maine suna hai kuch students yeh baat kehte hain ki ye DPSP dono ko enforce karna padta hai, lekin koi bhi rule nahi hai jisse yeh confirm ho sake. Main confused hoon. Koi bataayega ki dono mein kya fark hai exactly?