Lekin papa keh raha tha ki income aur gain hai mazha mein, main samajh nahi raha!

Yaar, please help! Mai ab LLB ke liye tayaar hu, lakin Taxation Law mein confusion hai. Papa ne bataya kuch gaadiyon ka, jab income aur gain ki baat hai. Unhone kaha ki 'income' woh paise hote hain jo aapko annual returns mein dekhne ho jate hain. Lekin 'gain' kya hai papa ne kaha ki yeh to profit mein se ek cheez hai, jab aapke paise badh jate hain. Bas problem hai, main samajh nahi raha ki income aur gain mein kya phayda hai. Gain toh income mein se ek cheez hai, par aisa to nahi hota na?